Times 2 the needs of a larger TV. When starting that camping bug, you will find that your first choice of a camper will change over the years, unless you are a di hard tent camper. So that first camper unit will probably grow in size, as your needs ofter increase in a few years. Thus starting with the heavier duty 3/4 ton truck might be your best choice.
When we started camping, we owned a Suburban, a great tow vehicle for our pop up camping years. But when we decided to move up the ladder to the fiver's, a truck was then needed. We chose a Ram Diesel, 3/4 ton HD series, and have not looked back for the last 15 years. Thus if considering a pop up or a TT, a 1/2 ton truck might be your choice, but thinking about a fiver, then chose the 3/4 ton series or larger, you will not regret that decision.