[wingnut60]

I bought a 2005 Doubletree 36TK3 in 2007 for $45000, MSRP was 101xxx. That was $56k depreciation in 2 years. After owning it for 10 more years, got $20k in trade on a used '15. The '15 had an MSRP of $134000 and at 1.5 years old, it was priced at $89000. That is $45000 in less than 2 years. Yep, lots of depreciation on these DRVs and any other...but only $25k in the next 10 years=$2500/year.
RVs are not an investment in any sense of the word.
Sounds to me like you need to sharpen your pencil on your dealing.
You can easily get ANY NEW DP from Motorhome Specialists for 25% off MSRP any day of the week. Take your 1M MSRP MH and get it for $750k--at what point will it go for $250k?--13-14 years later? If that's what you want, go for it.
If you get a Prevost, let us know how the deal went.