What are some toys you loved (or still love) at one point, but have become outdated or replaced in your collection? With Transformers and import figures this seems like a common occurrence. Especially SHF and the 2.0/ SS versions of characters.
MP Grimlock was one of my favorites, but now is a bit too small and 3Ps/Ko companies have made bigger, better versions.

A lot of old Toy Biz Marvel figures also fall under this. Mafex's upcoming Spider-man seems like it'll eclipse the old McFarlane one. Hasbro's Tiger stripe wolverine and Revoltech's Astonishing suit are better than Toy Biz's; though I still like the brown suit from TB. The one character they haven't been beat on yet is The Hulk.