I rent a U-haul van or box when I need it. The van costs me just over $100 for 2 days and the refer box truck (from a local truck rental company) cost me $115 for 2 days including mileage! I can't see the sense for me to own, register, maintain and insure a truck that I only need once a month. I own a Honda Element that is fine for most small jobs and one of my employees owns a van that I pay gas and mileage for. This is working fine for us for now.
The guy who owns the burrito shop next to me has a refer van that I covet! He's offered to rent it to me, but I'm scared to death I'll have an accident in it. THAT would be embarassing! He paid $32K for it. Good deal for him, but I'm not there yet.
I to was renting vans for a few months when i first got started. I feel you do the best with what you have and try to keep your costs down at all times.
I now own a van,used cost me $3,400 plus $1,300 for a half wrap with logo and info, I consider it my "Mobile Billboard Sign" From driving the van around I get a lot of marketing with it and I have received more than the price of the van is worth by people calling and emailing me just by seeing the van driving from one job to the other.. I can only speak for me, it was a great investment. You get 2 good weddings and the van is paid in full!