I'd say, skip the CA extended warranty, just put that money aside for a future repair fund, go with the included 12mo/12K mile chassis warranty, test everything out the first month (CA has an unwritten 30 day warranty on coach things: I had them fix/replace the refrigerator light and the dash board hi/low fan switch, I discovered the first week).
I did find a local mobile RV service tech (shout out for www.rveagle.com), that for about $250 spent 3.5 hours going through everything on my final walk thru day; he found dying (engine and coach) batteries, almost broken off oil dip stick, 6" roof crack needing repair, broken window latch, all were fixed/replaced by the next day to sign the final papers.. He checked all the systems: A/C, heater, refrig/freezer operating temperatures, water pump, generator, roof, etc... all the stuff that he sees day in/day out breaking on "houses driving down the road" at 55 mph. IMO, worth every dollar since I too am a RV beginner.
IMO, the best upgrade... a back-up camera and monitor on full-time (not just when in reverse), I even removed the rear-view mirror to mount the monitor there, which is a natural spot to look when backing up. It also basically picks up cars from behind that I just lost in my side mirrors (blind spot).
Oh and lastly, I upgraded to Good Sam's full road side assistance package, I haven't used it yet (knock on wood) but gives me greater peace of mind if I have trouble out on adventures.
Marty
PS, bonus.... CA refunded my rental fees (less taxes) from when I rented a unit in May (as long as within 6 months of purchase)...that was almost $900. :)
