That’s a good question. I recently sold my dirtbike and purchased a MTB as a less expensive form of trail riding. Generally speaking, what I have invested overall in the MTB vs motorized dirtbike is a mere fraction, yet gas prices for a ‘road trip’ are significant.
I may still try to do a trip to Moab (1300 mile round trip) this spring or fall, if gas prices don’t hit $5.00/ gallon. In the meantime, I’ll try to ride as much local stuff as possible here in AZ, until the temps start reaching self-clean oven digits.