LordTalbot: You have over 150 collectors editions?
Not only. I have some Collector Editions, single games, compilations of several games, expansions, GOTYs etc.
Some highlights:
Age of Empires 1+2+Expansions. (Compilation)
Command Conquer 3, Expansion, Red Alert 3 (separate)
Command Conquer First Decade (all games up to Generals)
The Battle for Middle Earth 1, 2 + Expansion (separate)
Drakan: Order of the Flame
Pre-Anniversary Titan Quest + Expansion (both separate and compilation)
Tomb Raider 1 - Underworld (compilation, including the rare expansions like Lost Artifact)
Divinity Anthology (all divinity games up to Divinity 2)
Unreal Tournament 2003 (not available anywhere)
Worms 3D, Worms 4: Mayhem (separate, not available anywhere)
All original Baldur's Gate games and expansions (compilation)
All original Icewind Dale games and expansions (compilation)
and tons of others. I value especially those which can't be got DRM free digitally or those that are not available anywhere. I of course also have boxes which required Steam activation too (none of them "code only" though) which is sadly inevitable these days but boxes are the only way I am willing to accept DRMd games. That way, I have proof of ownership if I lost access to the games and can pirate them without a heavy heart to get a more flexible and portable version.