Yeah, I'll likely stick to the "main ones" as well...although I guess I haven't strayed too far from that with the 6" line either. I just don't have the room for a whole lot. I think I might be getting towards the tail end of Legends as well, just because they've made most everything that I'd like to get, although there are always some characters that you hold out for. Other than anything from Spidey's world (villains, hopefully an MJ), I'd like to pick up the F4 and Doom, a few more X-Men, Iron Man (not sure if I want the modern one, might try to get an older one), and maybe a few miscellaneous characters.
That brings up another point (at least in my head). If Toy Biz went the route many other action figure companies have, and "redo" characters down the road, would you rebuy them, or just be happy with previous versions. I'm sure it depends how much better they are, and likely they would be improved in some ways, but many ML are quite nice to begin with so it would be tough. I know with Star Wars figures I have bought, and bought, and re-bought a number of characters, just because the improvements were so big (and plus the price usually isn't terrible, and the scale manageable). Anyways, would you buy any "new and improved" versions of Legends, or is the first time around good enough? It will be interesting to see how much longer the line continues, I thought I heard that in the Toy Fare interview they had through Series 15 planned out (in 2006).
