@addicted-to-smoke I have used many table top grills for this purpose and find its not ideal:
1. Table space is usually at a premium at most tailgates we throw
2. Table top grills are often less stable. more prone to sliding or to knocking into or over by guests
3. Chances are you are cooking for a large group and no portable grills are big enough.
The stand alone grill next to a table is a better solution for my needs. A 22" One touch kettle has more cooking space but when dissassembled takes up too much room in transport. When you add in tents, cooler, chairs, corn hole boards space gets tight. An 18" takes up way less room but your cooking space is equally limited, especially if you want to leave an indirect coal zone in case things are getting hot which can happen quick when you are doing tailgate foods like burgers that are prone to flare ups.
I feel like a the smaller bowl on the 22" might be best of both worlds with less space in transit but equal cooking space.