See, I found the opposite. Every vehicle I've tried until I went back to a truck needed new brakes once a year due to the WV mountains and had to have alignments and suspension repairs more often, try driving a minivan/cuv through those mountains and you'll quickly find out how high maintenance costs can get

150lbs is not much, remember that tow bar weight will subtract from the overall cargo capacity and actually be more since you have to account for the leverage due to the distance behind the real wheels. A couple jugs of water, box of food, and BOBs will hit the max cargo capacity of your average car pretty quick.