I loooooooove the Muppets. My kitchen finally shipped a few days ago, I cant wait to get it! This is the only line aside from Star Wars that Im dedicated to (although I did get the first series stuff of TMNT). If you hate exclusives and variants, this is definately the wrong line for you. Although, you can get almost all of the exclusives through the Collectors Club, and variants aren't hard to come by. So far Ive managed to collect a complete set for the exception of the Ken Lilly Wedding "Kermit and Miss Piggy Wedding" two pack, which was given away as a gift at his wedding. Ive managed to get all three industry giveaways, and the rest has been pretty easy thanks to the Collector's Club.
This line, in terms of detail, authenticity, play value, playsets and overall value, is definately the best line of toys out right now. They aren't cheap, but you get incredibly meticulous detail, lots of nice accessories, and very nice likenesses. The Swedish Kitchen is easily the best playset ever made, and its a bargain at only $35-$40.
I highly recomend getting into this line, and if anyone needs help, Id be glad to show you what you need to catch up on, provide you with lists, etc.