I noticed a lot of the assets are on multiple stores. I also noticed the prices for the unlimited use license don't seem to match the price on the other stores which typically seem to suggest unlimited use.
In fact the single use license seems to match the unlimited use on the other stores.
Why would I buy anything here?
I can explain why, probably not for all cases, but it might justify some cases.
When the closed beta of the store was on, we as sellers, had to include the Single Use license, it was a compulsory choice. Then, Unlimited and Exclusive licenses were additional options. We couldn't choose Unlimited without choosing Single Use.
Therefore, I guess, many opted to put the item on sale knowing that buyers will use anyway the license in several projects. Having the unlimited option was forcing us to ask for a much higher price. I can't recall exactly how much it was before, but now it has to be a minimum of 3 times more.
Me and other seller pushed to have the option to sell only as Unlimited or Exclusive, without having to set a price for Single Use, and then later Scirra's Team did the change.
What happened is, or at least I think, that many sellers didn't want to change again the price settings or didn't notice the new option, and therefore what could have been an Unlimited license since the beginning, now is set a Single Use license.
Of course, some seller might put intentionally the license in that way, in that case, I suggest you ask directly to the seller why on other stores is selling with unlimited use and not on Scirra's Store.