Deal: Save $250 on T-Mobile Galaxy S10 and S10+ at Costco
These phones are sold by Samsung for $900 and $1,000, respectively, but with Costco's discount, you'll be able to get them for just $650 and $750, maybe even less. The Galaxy S10e could be part of the deal as well, even though it doesn't appear on the advert. If that's the case, then it should be available at Costco for $450 or $500.
Costco offers the $250 discount until September 19 and if you want to take advantage of the deal, you'll have to visit one of the retailer's warehouses. Once again, these deals are only available for the T-Mobile Galaxy S10 models, which is why you're required to be a T-Mobile customer.
If you don't qualify for Costco's promotion, you can definitely find other Galaxy S10 deals that match your budget, as Samsung's marketing strategy has been quite aggressive lately.