I think the "old rules" regarding % of income for any purchase are out the window for a lot of reasons.
1st, is the cost. Pretty sure I paid $35,000 for my top of the line Laramie Dodge RAM in 2003. My 2012 was $58. A 2017 would be considerably more.
2nd is interest rates. As stated above, why use your money when you can borrow at a very low interest rate?
3rd is how long a vehicle lasts. In the past, a 10 year old vehicle with 100,000 miles was almost worn out. Not the case any more.
Bottom line is, it is his money. He should buy what he wants.
I also find it ironic that people on an RV forum, who own RVs, are coming across as holier than though regarding finances. It sure is a lot easier to justify a new vehicle purchase than ANY RV purchase.
