Got my first Jag because it was cheap enough that my mom would agree to buy me a new console, i sold it later on to finance a Saturn and regretted doing so for decades(loved the Saturn but the Doom port was a downgrade😅). Bought an other one maybe 8 years ago and as many brand new games as i could before it became too expensive to even consider.
I probably wouldn't do it today. I have 20+ games if i count different versions of some.
Part of the appeal for me is nostalgia.
As already stated, there is a very good emulator that you should try before you decide if this system is for you.