Every so often you will come across a "testimonial" on this forum from someone who just upgraded from a 1/2 ton (i.e. F150) class truck to a 3/4 ton (i.e. F250) class truck, and almost universally, they describe the difference as "night and day." You might want to go look some of them up to get a more subjective feel for the difference, rather than people spouting numbers off to you.
In a word you don't know what you're missing until you've experienced it. You may feel that towing with the F150 is just fine, but that's because you don't have anything to compare it to. All the behaviors like the subtle jerking, mushy feel of the suspension, bracing every time a big truck comes along, the "will it or won't it" feel to the brakes, etc., all gone with the heavier truck. You may have never been in any physical danger, but it just FEELS like you've got so much more control over the situation.
