I drive 12 hours one-way a couple times a year to visit my daughter. It is a nice drive, but a bit expensive in my truck. Still cheaper than a flight and the hassle. Well, unless you hit a deer and total your truck. :(
We'll take the EV on trips that have lots of charging options on the way, particularly with my wife wanting to stop every 200 miles and stretch her legs for 10-15 minutes (which mirror's the EV's road charging). For now that's cheaper than filling up the pickup, especially if we wind up staying at a hotel with complementary chargers. The same for when the weather is nice and we rent a RV campsite to hammock in the trees (and charge the EV using the TT-30 to NEMA 14-50 adapter). Part of the math on the EV being cheaper on trips is the first 250 miles are almost free from charging at home (with 80% of our power needs provided from our home solar, me trying to be energy self-sufficient to give us some protection from the Dims' control-freak energy policies).
We take the gas pickup on trips that have few chargers (only once since we bought the EV). I might also take the gas pickup if I go on a trip without my wife since I don't want to stop every 200 miles, but I haven't had a solo trip since we bought the EV a year ago.
The gas pickup is also a fallback in case the Dims make power supplies (including road-side charging) less reliable. If the Dims make gas hard to come by and/or too expensive (IMHO gas is still too expensive), we have the EV car for trips. If the Dims make both power and gas hard to come by, home solar combined with an EV gives us some mobility for local transportation (easily 200 mile round trip with a margin for safety in a grid-down situation where there are no charging options except for home).