Your key word potentially being ANY MORE - when I bought my licence (back in JUNE 2018) there simply wasn't the ability to easily play backups like there was with SX OS.
Still, 9 months AFTER I bought the SX OS licence, none of the free CFWs offer the following (otherwise I would have sold my unused licence and used one of the free CFW offerings):
emuNAND support
USB HDD support
XCI loading
a better cheat system in place.
To be brutally honest - I had not even USED my SX OS licence since I bought it back in June 2018. I've had a firmware 3.0.2 switch sitting in the cupboard waiting as a birthday present for myself. I only THIS PAST WEEK did my NAND backup, then installed SX OS, created emuNAND and then updated the emuNAND to 6.2. My daughter is currently playing the switch (yeah, happens with all presents for Dad).
Do I feel ripped off of the $30 I spent on the SX OS licence nearly a year ago? Not at all - as just in a couple of days I feel I've more than gotten my moneys worth out of it.
To me it STILL seems that there are more people salty who can't spend or won't spend the $30 (the cost of a cheap 64GB SD card a year ago) to get the ease of use and features that SX OS users have been enjoying for the past 9 months.
$30 to me is an hour's wages after tax is taken out, I feel nowhere near scammed. I realise for American resident $30 may potentially be an entire day's wages.
But maybe that is why there are so many USA, South American, Greek, Italian, Spanish and Portugese SX OS haters - they cannot easily afford it.