I don't know why, but NADA appears to replace the first letter of all models with "M-". So my X-19H appears as M- 19H on the site.
Strikes me that the NADA price is about right based on what I paid (C$) for my '11 19H a few years ago, but there are a lot of differences. Not sure that NADA is factoring in the market demand right now, so paying a premium for a really good unit is probably fair IMO.
2011 Jayco X19H (purchased 2015)
2008 Jayco 1007 PUP (purchased new, traded for the X19)
2018 Nissan Titan Midnight Ed.