From MaGog's logs for 6 November:

* Regional price for Mini Metro is $3.79 instead of $9.99 in regRU, regUA, regUZ

From MaGog's logs for 9 November:

* Regional price for X2: The Threat is $9.99 instead of $5.99 in regAU, regNZ, regMX, regBR, regDE, regIT, regCH, regNO, regSE, regMC, regCZ, regPL, regRO, regRS, regGB, regCN
* Regional price for X2: The Threat is $1.49 instead of $5.99 in regRU, regUA, regUZ



* Regional price for X3: Reunion is $2.99 instead of $9.99 in regRU, regUA, regUZ



* Regional price for X3: Terran War Pack is $4.59 instead of $19.99 in regRU, regUA, regUZ



* Regional price for X: Gold is $2.99 instead of $9.99 in regRU, regUA, regUZ



[Something tells me there's a bug with X2]

They're already working on it.
The US sale prices have already been changed, the US full prices not yet.
So for US it currently looks as follows:
X2 $5.99 full, $4.99 sale by itself (-17%), $2.49 sale as part of the bundle (-58%).
I expect the US full price will soon be $9.99.

The base price for X2 should not be higher than $5.99.

That's how it looks for me too, except that on the bundle page it says 16% off, and on the game page it's 17%, though the price is the same ($2.49).

Seems like there's a threshold - no item in the bundle costing less than $4.99 if bought on its own while discounted.

From MaGog's logs for 9 November:

NOTE! CHANGED X2: The Threat, reg_price_full, regAU: $9.99 ***TO*** $5.99
NOTE! CHANGED X2: The Threat, reg_price_full, regBR: $9.99 ***TO*** $5.99
NOTE! CHANGED X2: The Threat, reg_price_full, regCH: $9.99 ***TO*** $5.99
NOTE! CHANGED X2: The Threat, reg_price_full, regCN: $9.99 ***TO*** $5.99
NOTE! CHANGED X2: The Threat, reg_price_full, regCZ: $9.99 ***TO*** $5.99
NOTE! CHANGED X2: The Threat, reg_price_full, regDE: $9.99 ***TO*** $5.99
NOTE! CHANGED X2: The Threat, reg_price_full, regGB: $9.99 ***TO*** $5.99
NOTE! CHANGED X2: The Threat, reg_price_full, regIT: $9.99 ***TO*** $5.99
NOTE! CHANGED X2: The Threat, reg_price_full, regMC: $9.99 ***TO*** $5.99
NOTE! CHANGED X2: The Threat, reg_price_full, regMX: $9.99 ***TO*** $5.99
NOTE! CHANGED X2: The Threat, reg_price_full, regNO: $9.99 ***TO*** $5.99
NOTE! CHANGED X2: The Threat, reg_price_full, regNZ: $9.99 ***TO*** $5.99
NOTE! CHANGED X2: The Threat, reg_price_full, regPL: $9.99 ***TO*** $5.99
NOTE! CHANGED X2: The Threat, reg_price_full, regRO: $9.99 ***TO*** $5.99
NOTE! CHANGED X2: The Threat, reg_price_full, regRS: $9.99 ***TO*** $5.99
NOTE! CHANGED X2: The Threat, reg_price_full, regSE: $9.99 ***TO*** $5.99

Which boils down to the game being regionally priced only regRU, regUA and regUZ.

From MaGog's logs for 10 November:

* Regional price for Braveland Pirate is $2.99 instead of $6.99 in regRU, regUA, regUZ

From MaGog's logs for 11 November:

* Regional price for Last Federation - The Lost Technologies, The is $2.49 instead of $6.99 in regRU, regUA, regUZ

* Regional price for Last Federation Collection, The is $6.89 instead of $24.99 in regRU, regUA, regUZ

From MaGog's logs for 12 November:

* Regional price for Runestone Keeper is $3.79 instead of $9.99 in regRU, regUA, regUZ

From MaGog's logs for 12 November:

* Regional price for Invisible Inc: Contingency Plan is $6.09 instead of $4.99 in regGB
* Regional price for Invisible Inc: Contingency Plan is $5.49 instead of $4.99 in regDE, regIT, regCH, regNO, regSE, regMC, regCZ, regPL
* Regional price for Invisible Inc: Contingency Plan is $3.99 instead of $4.99 in regAU, regNZ
* Regional price for Invisible Inc: Contingency Plan is $2.99 instead of $4.99 in regMX, regBR
* Regional price for Invisible Inc: Contingency Plan is $1.89 instead of $4.99 in regRU, regUA, regUZ

GB always get a raw deal ) :

Actually, not always.

For example, 11 games where GB pays less than US (although still more than all other regions):
[url=http://www.an-ovel.com/cgi-bin/magog.cgi?ver=632&scp=gdspur&dsp=ipgfsorlcmbahT&ord=&flt=prx~1~pra~gb~&opt=]http://www.an-ovel.com/cgi-bin/magog.cgi?ver=632&scp=gdspur&dsp=ipgfsorlcmbahT&ord=&flt=prx~1~pra~gb~&opt=[/url]

But generally speaking you are right and I can relate to your frustration.

From MaGog's logs for 13 November:

* Regional price for Tropico 5 is $53.89 instead of $39.99 in regGB
* Regional price for Tropico 5 is $44.09 instead of $39.99 in regDE, regIT, regCH, regNO, regSE, regMC
* Regional price for Tropico 5 is $38.49 instead of $39.99 in regCZ, regPL
* Regional price for Tropico 5 is $28.49 instead of $39.99 in regAU, regNZ
* Regional price for Tropico 5 is $24.99 instead of $39.99 in regMX, regBR
* Regional price for Tropico 5 is $19.99 instead of $39.99 in regUA, regUZ
* Regional price for Tropico 5 is $10.79 instead of $39.99 in regRU

Gone Home seems to be an exception.