Is there a valid reason to carry the extra weight of spare tire? Will roadside assistance show up with tire mounted to wheel and then change it? There is no way I could change it myself.
It does depend on the tire size... If it is a common truck tire size then no problem. It's not funny when they laugh at the size you need. If I can buy the right size at a reasonable price then the unmounted spare stays on my roof. If not then it will get me to where I can buy one at a reasonable price