I guess I wouldn't be surprised to see a price raise with the ROTS figures. I certainly hope not though (as all of us do), and if they do, maybe just to $5-something. I was just thinking back the other day about when I paid $7-$8 a figure for those Episode I characters, that is just crazy. And, when I look back at it now, it wasn't worth it to me. That is my least favorite movie, and really the most boring part of my collection to me unfortunately. If they were for some reason $12-13 a piece, I'd have to strongly consider what I was going to do. I'd probably still collect a few, but be quite limited (main characters only, very few supporting). I just couldn't afford that.
Scale change? I really think (hope) that Hasbro isn't that stupid. Star Wars toys have been in the 3 3/4" scale forever, and for them to change it for the last movie would be insane. I too would probably drop out, and it might prompt me as well to get rid of all my prequel figures/ships/etc. as well. But, that said, I don't think it will happen....yet....but you can never put it past them. I could see them switching scales once the movies are said and done, or doing something different. I'm really curious to see where the line heads once ROTS is all said and done. How many figures (if any) we'll get each year, whether it will be more of a collector line (hopefully), with VOTC-style figures, packaging, etc. (but hopefully not that expensive). I really enjoy collecting Star Wars, so I hope it continues, but I think I would be ok with it being a little more limited in figure releases (financially, it would be better for me). The days of 50 figures a year might be done, I'm not sure if any other lines really have that many? Maybe GI Joe, but I'm not sure.