New to RV'ing. Want to fulltime. First post -- Hi!

When considering your lifestyle(I often have thoughts of fulltiming after retiring), I'll find a trailer suitable for my wants/needs first and then find a vehicle to tow it. For fulltiming, I'll look at a well insulated 4 season rig like an Arctic Fox with thermo-pane windows and heavier frame. But that all comes with more weight which requires a heavier duty tow vehicle. My Keystone Bullet is an ultralite, works well for family camping, but I wouldn't want to full time in it.