We currently chase, tow and rent. If traveling from campground to campground, we often do both tow and chase. It’s nice to have the option. We started rving with a TT, so we always had a vehicle to sight see in. When we switched to a C, we missed being able to hop in the car and go to town. Sight seeing with the MH was not always easy. Especially finding parking in downtown areas. The test was to have my wife drive our CRV behind the camper. Liked having the car so we set it up to tow. A down side to using a chaser is most campgrounds charge an extra car fee if you drive the car in. If you tow it it’s considered a trailer and no extra fee. We do a few extended trips, say 4000+ miles and usually with a single destination, on those trips we rent a car.
A lot depends on where you are going and what you are going to do upon arrival. Money wise it’s a wash. Towing, it costs us a mile or two per gallon, but we make it up by the higher MPG when sight seeing in the toad. Our CRV is smaller/lighter than a typical TT and for the most part, an easy tow, except you can’t backup.
I say try using a chase car for a few trips and then decide. There is no perfect answer, just more choices!
Norm