I was able to find a 'used' RVi3 with tablet for about 1/3 the cost of a new unit. The case, tablet and hub look in good shape. I contacted RVi and sent everything to them for a function check including condition of batteries in tablet/hub, which they will do at no charge. The unit is several years old (approx 4), so it is out of warranty. They will advise if anything needs replacing and the cost. The firmware update will be free of charge and once done I plan on adding the wireless breakaway.
2021 Newmar Baystar 3626
2013 Wrangler JKU