As a kid I don't think I ever thought of my "collection" in a sense of wanting more. It was always wanting specific characters.

Sure walking down a toy isle or receiving gifts it didn't matter to me, Transformers, Transformers, Transformers, gimmie, gimmie, gimmie. However If I sat down and thought about it there were clearly characters that I wanted to tick off my list. Whatever that reason may be: they did something in a cartoon, they did something in a comic, a friend had the toy and I realised it was awesome...

Obviously, like most, even with that limited thought process, I never got all the ones I wanted and I guess that's what re-enforces favouritism.

So, to flip the question... being able to get whatever you want, has it changed who your favourite character/figures is/are? Also, if/when you have kids and can likely get them more than your parents could afford for you, will you get any/all, or will you artificially restrict what toys they get?

Because if there's one thing I realised through my kid and his books. It's a lot harder to pick a favourite or build a connection to something if you own the entire set. Looking at you Mr Men box set.