Etailers are pushing MP scale because that is what sells best. Go with what is safe and what fans are going crasy for most nostalgic feeling. Many don't read comics or watch new stuff, they want G1. Etailers don't want to be stuck with products not selling, and they certainly cant commit to larger quantity purchase to the 3rd party if they feel product may be riskier to sell. Also, Takara / Hasbro is relatively SLOW for MP production, they don't have the same large quantity sale / revenue then with their CHUG or Titan Wars / Combiner Wars / etc lines. People with more money tend to buy MP in general, and well, 3rd party can fill in gaps when you consider how many they are, and price can be similar to Takara MP pricing. For the CHUG, you have to compete with Hasbro at 15 - 40 $ figure and you know 3rd party pricing is 50 - 120 $ for same scale, and many will end up buying that instead, so etailer stuck with products they cant sell 3rd party wise.