I set up an LLC in the US for about $500 and pay Delaware a few hundred each year in fees. As it turned out, it was probably an unnecessary exercise and I probably won't renew in a couple years. But it wasn't a big deal.

Delaware is expensive and you must have had a very specific reason to build your LLC there, rather than for example in Wyoming - such that to raise capital, build a corporation, etc. Now if you want to shut it down in a couple of years, it's not exactly clear what you had in mind.