Bodacious....The concerns that you expressed are
very valid ones. Having been faced with the same choices some 10 years ago I decided mobile was the way to go and here's why.
If you open a restaurant the start up equipment costs are staggering, competition is fierce,you're at risk if you pick the wrong location and you're locked into a lease (or the city might decide to put a freeway or subway down your street or change the zoning in which case you're screwed)In addition, there are permits, inspections,overhead, staffing, uniforms, and fixed hours of business. According to statistics I just read two out of three new restaurants fail within the first year. How do you like the restaurant business so far?
My second choice was conventional party or business meeting catering but there again the start up costs become a major issue. you will need expensive fancy silver chaffing dishes and serving trays, china plates & silverware, tablecloths, uniforms, table & chairs, and vehicles and equipment for delivery of hot food. Oh yes, and don't forget the commissary you will need to prepare the hot food. (like a restaurant kichen)
So my choice to go mobile was an easy one. For 30K I had a fully equiped mobile kitchen with serving doors on three sides ready to go to work. No location risk, no commissary, limited menu, and in fact none of the above negatives. Originally I had planned to do as you mentioned...special events, fairs, auto races, etc. but I got sidetracked by the film industry and their need for mobile catering and that's what I've been doing since day one. No regrets! It's damn hard work and long hours but I decide when, where, and if I want to work and the profit margine is significantly higher than the other two options.
One last thing...I suggest that you avoid a partnership arrangement at all costs. One partner will get the short end of the stick and there will be difference of opinion fom business decisions, business responsibilities, to different work ethics which will result in hard feelings. Sorry about the length of this post. Best advice?...Find A Need And Fill It!
CB