A Poester writes in:
I was chatting to a friend of mine today [who owns a specialist collector toy shop in England] – mostly Transformers, Star Wars etc.  We where chatting and the whole situation with MOTUC came up, as I know he collects them. During our conversation he told me that last year, he contacted Mattel and wanted to be a supplier for MOTUC in the UK. They replied and told him that unless he was willing to purchase $55,000 worth of each figure, they would not supply him. Realistically he was willing to spend £500-£1000 on each figure, but he said there was no way he was going to order $55,000 worth of one figure.
It puzzles me they would turn down a retailer willing to spend £1000 on one of their monthly figures, yet they are claiming there is not enough support. Mattel must really want to keep retailers and customers away from their products.
Obviously this is entirely unsourced, so it’s nothing but hearsay without actual corroboration. Still, it doesn’t sound made-up to me, and it also sounds entirely plausible.