I don't know if I agree with this thread. I like the Muppets toys, and I have 'collected' toys for many years.
I used to collect the Simpson's toy line, but stopped and sold every one of them.
Why?
It wasn't because of the exclusives (though I did get sad that I couldn't get the Pin Pal Mr. Burns, radioactive Homer, or Boxing Homer) It was becasue it just became too much. More figures being released all the time, and characters that few people even cared in (Not to mention 23 variants of Homer and Bart.)
The line continues on and seems to be doing strong, not even missing my few dollars.
The muppet line has GREAT quality, and is wonderful! It compares really well to MacFarlane toys. (Arguably, one of the best toy companies out there. Behind Palisades, of course!) They have amazing attention to detail. They aren't the most articulated toys out there, but that's the choice you make. High articulation OR high detail. Would Kermit have been better with bending knees and elbows? I don't think so.
MacFarlane also offers exclusives and variants, and even offers special figures through their collector club. They remain a strong to company regardless of all of this (or maybe even because of it.)
I'm a huge Muppet fan, Kermit in particular. But as the toy line continues, I may not be buying all of the exclusives, or even all the regular figures. I'll just get what I like. (again, a lesson learned from the Simpson's toys)
It all boils down to you. If you want an exclusive, then by all means, find a way to get it.
If not, be happy with what you have.