I have a Korg SP250 (there’s one on eBay for 500 s/h: https://www.ebay.co.uk/itm/Korg-SP250BK-88-Key-Popular-Portable-Piano-Package-Black/282945131665?hash=item41e0d81491:g:Dx0AAOSwKFpa5kwr).
When a pianist who supports a local choir had a play on it, he was miffed as he’d just bought a Yamaha P90(?) and he was disappointed as his didn’t have as many voices, but the keyboard feel was just as good as his. He said that although the Yamaha made a nice sound, it was a bit limited to sounding like a piano, whereas the Korg does a good job of sounding like a piano, organ (pipe), organ (hammond-style), strings, etc etc.
I’ve played for a few years now and the variety of voices have been a great benefit, it wasn’t something I was particularly looking for, but it’s nice to be able to play in a voice that emulates the original track (if you’re playing a cover).