With the ease and speed of browser-based DOSBox (look at internet archive), DOS becomes a highly portable target for small games and even non-trivial games.
Anything up to the complexity of mid-90s AAA titles can run practically anywhere with a keyboard and mouse.
Games like Tomb Raider, Command & Conquer, Quake, etc. This is pretty compelling if you want a "it just works" platform.
Having SDL now makes that even easier.