This looks cool enough, but I could just get most of these games on the Switch, and this is missing a few games like Shining Force II that the console collections do have. My two favorite Genesis games were Sega CD games - Lunar: The Silver Star and Lunar: Eternal Blue. Those two games were as good as the best SNES RPGs and I still have the PS1 versions of both games complete with all the feelies. If this thing had those it'd be a must-buy for me.
The Genesis Mini does have one game I've never seen on any other collection - Alisia Dragoon, a cute platformer game I played at a kiosk years ago. It was actually made by some of the same people who made Lunar.