My wifes 1/2 ton rides better, sits lower, easier to get in/out of, parks easier, commutes easier etc. She has an '04 RAM1500 shortbed 4-door 2wd; I have a '01 RAM2500 4x4 xcab longbed diesel.
I had to make two trips back/forth from near Sacramento to outside of Palm Springs in one week last year, for family reasons. First trip I took my truck by default. Drove down saturday, home sunday. Did the same the next weekend, but took the 1/2 ton; much nicer! Even though my truck rides nice for a 3/4 ton 4x4, that 3/4 ton rear end is stiff when empty. So are "E" rated tires compared to the lighter tires on the 1/2 ton...
I got my truck while I still had a large cabover camper that really needed the 3/4 ton ratings, and I hauled a horse trailer. I needed it then. Now, hauling my Kubota(trailer/tractor/implement is about 3800 lbs)I could do most things with the 1/2 ton easy.
One of the big things that gets me on my 3/4 ton, is tires. I am about due. For a decent "E" rated AT's, you're looking at about $800, in a stock size. Stock size 1/2 ton tires "C" rated are LOTS cheaper... Ya, I take 12 quarts of oil and stuff at oil/filter changes, which is expensive, but those tires really get my attention at $800 in one whallop
I would look at a Dodge first(brand loyalty, Dad works for Dodge since '65 so I get a good price, and I like them), but that Tundra should easily do everything the original poster wants. I would look at one before I bought anything else(although I might be hesitant of first year production)