The S10 phones are still pretty great. They may be 2019 models but that doesn't change the fact that they are still quite powerful, have great cameras, and a design that is still very much in style. They will also get at least another major Android upgrade and still get security patches monthly. Cool, OK.
But still. The Galaxy S10e wasn't really a hit with the audiences even when it was new. The S10 and S10+ are nice phones, but is Samsung asking a bit too much for them? The latest-generation iPhone 11 starts at $699.99, and on the Android side we've got no-frills competitors like OnePlus growing bigger and more prominent every month. Not to mention the second hand and refurbished market, which is flooded with bargain-priced Galaxy S10 units by now.
With all that, would you spend money on a full price Galaxy S10 (any variant) in 2020?