It all depends on which NBA 2K23 MT dealer you buy from. I generally steer clear of the big sites (often also Chinese merchants) with unlimited inventories of tons of games. If you visit the NBA2king marketplace, there are many players selling their MT. Plus, you'll get the best possible prices, but the site's escrow-based transaction system ensures you get what you pay for. Also, trading MT with other participants (even in the case of RMT) is probably the safest way!!
As far as I know, there are many sellers selling NBA 2K or MT for NBA 2K online at affordable prices. However, in my case, I would first consider buying from a legitimate site. I feel this is safer than searching for online players. I know that their website now sells NBA 2K MT, and it is not much more expensive than the players Buy NBA 2K MT. The trick is to buy with confidence through NBA2king. Their service is also great.