Where are you getting those wholesale prices from? Do you mean the price you can buy an unbranded generic version? Because that's not wholesale, you can't buy it and sell against a listing that's branded.
In general the products that sell well will have a very competitive wholesale market and you'll be lucky to squeeze out 20% margin. It's certainly possible to get large margins in closeouts if you buy items that aren't popular, but it's difficult to scale that. And that's arguably liquidation anyway.
I'm getting those wholesale prices from hengdadice.com, the same wholesaler those two merchants both use. Factory prices, we can only assume, are much lower.
I don't know what you mean by "unbranded generic version". For reselling purposes, you can order a little card with a design of your choice on it (1 design total, 1 card per set of dice) from hengdadice.com, and both merchants I mentioned do that. That increases the wholesale price by a few cents.
In the United States, you can resell any product you legally acquired from any source, you do not need the permission of the original producer/brand owner.
We're talking about selling on an Amazon listing which has the trademark on it, which isn't allowed. That's what I originally pointed out - that the wholesale price wasn't relevant because it's not for the trademarked product.
Nothing's stopping you from registering your own trademark and selling whatever you happen to have on hand under that mark. Ownership of a trademark is free.
Buying generic from China is not wholesale. Wholesale in this context means buying branded goods, either directly from the brand or from a distributor further along the chain.
You also can't scale up the cheap UPU subsidized China Post + USPS shipping. It's for small quantities only. Order ~10+ and they ship via much more expensive means. Try and order a bunch one at a time and customs will catch on and seize them.
The UPU shipped items haven't paid customs fees / duties (or typically have WAY understated the value)..it's an exception for samples/gifts/etc. If they know you're shipping quantities, they want their money.
This is why some items on AliExpress either won't let you order more than quantity 1, or switch to FedEx only shipping if you increase the quantity.
Not really. https://www.amazon.com/Polyhedral-Dungeons-Dragons-Pathfinde... is selling for $10.98 the same thing you can buy wholesale for $1.50. Of course, you can get it from https://www.krakendice.com/faux-stone-green-jade-dice-set-fo... for the bargain price of $8.95.
https://www.krakendice.com/dice-by-collection/pearl-dice/ is selling sets for $5.95 when the wholesale price is $0.49.
Even after accounting for the cost of shipping, I'm pretty sure these are margins of over 100%.