WereCatf: Well, isn't TW3 going to be released in February 2015? That's 8 months from now, so there's still some time to scrounge up the cash for some upgrades. Throw a few euros or more on a second bank-account every month, sell some old clothes/appliances/bikes/whatnot you're not using anymore and so on. Then, in 2015 check up on used PC-parts, like e.g. some older Core i7 should be totally possible to get on the cheap as used by then, take any working parts from your current one and so on.
I am used to having to get by with quite little money, so I'm used to upgrading my PC in sort of a rolling fashion where I upgrade one part here, another there, I wait 6 months to 2 years until I find a good deal on the next part to be upgraded and so on. Also, most things work just fine even if they're used, the only things I wouldn't trust as used are mechanical HDDs.
I agree that's a good idea but I've been budgeting for a couple of years now for buying/building a new computer in 2017 (I plan way ahead) but even with a high end computer if linux is not support and/or not optimized it will take hardware not found for even more years to come for it to run good if at all(the overhead can* be quite bad at times using wine.)