I voted maybe.
I don't think minis are necessary to play the game, although the combat parts very often need some sort of visualization on a map, unless the group wants to play with simplified combat rules. For the raw purpose, any object of the appropriate size can do the job.
Of course, to have little figures for all characters and monsters is nice, as is to have a miniature environment instead of a paper map. But if I wanted to have that, it will need to have quite many figures, maybe more than a hundred (over time), so they would have to be very cheap. The WotC minis are quite cheap (1$ each?) although not
very cheap, considering how much an optional they are.
Anyway, randomization and rarity are two ideas that completely keep me away from WotC minis. For a while I have seriously considered buying some of WotC minis, but only on the secondary market (then I realized it was ridiculously expensive).
Randomization is for me, as a customer, a capital offense. I simply don't buy something before knowing what it is.
Rarity is a method of increasing the market value of something far over its material value. Since rarity is set by WotC at production, it is completely artificial (in comparison for example with stamps, which aren't printed with a planned rarity, but become rare because of uncontrolled circumstances), and as such it makes me feel cheated. Also, rarity-based collections are just the kind of hobbies that can drive little kids crazy, and I sometimes think they should be forbidden for under-18.
For these reasons, I have so far resisted in buying any of WotC minis, even if they look pretty nice and I am tempted... I just think I would feel somehow irresponsible if I feed that kind of market
