Thinking of jumping from a 5er to a DP for the convenience as we get a bit older. We aren't retired, but like to pull toys like a boat and jeep and up until now its always been multiple tow vehicles....
Don't know what your tax "stuff" is like in CO, but here in California some of the sales tax can even be deducted.
Had my taxes done professionally this year for the first time, and the accountant wanted to know about the sales tax I paid on our new A.C.E. (I know ... it's not a DP). While it's only a one-time deduction, an additional $1700 in my refund is nothing to sneeze at!