Otherwise food cart operators have a substantial advantage over brick-and-mortar business that a) pay a monthly lease b) pay monthly operating costs c) pay taxes as part of their operating costs d) pay to maintain their premises/renovate their premises and e) and stay open year-round and employ people year-round. Food carts just skim off the top and operate when it's convenient for them. Further to that they rarely employ more than a handful of people, if any at all (other than the owner/operators).
Sure, the food carts avoid paying some fixed costs. They also aren't able to offer their customers table service, comfortable seating, and a chance to get out of the rain. This is hardly head-to-head business competition. You might as well complain that the one woman sandwich shop on the side of the Bay Centre has an unfair advantage because she has lower labor costs.
I'm for anything that makes downtown seem just a little bit like, you know, downtown.