Hi, Gregg, and welcome!
It's one of those things....once you have it, you will wonder how you ever got along without it!
After sealing everything in site for the first month..I now only seal solids that I will be freezing. Subsequently, my bag expense has gone way down!
If you are BBQing, you NEED a sealer..simple as that. Many of the meats we cook are large roasts..butts, picnics, briskets, chuck roasts, etc...and you will end up with many leftovers. Sealing, freezing and then re-heating by boiling in the bag is the best way to do it.
Now, if you are simply holding the food for a couple of days in the fridge, then I personally feel there is no need for a vacuum sealer. Again, experience taught me this. To be constantly opening and re-sealing for 2 or 3 days, to me, is a waste of bags.
Anyway, whatever you do, welcome and have fun!