I grew Morning Glories this year for the first time. They were gorgeous when blooming, but I don’t think I’ll grow them again. They were very invasive and took a lot of ‘unwinding’ from everything they could grab. As pretty as they are, they only bloom in the mornings (which I knew), but those brief blooms just don’t offset all the vine issues you have to deal with. Maybe along a fence or something where they couldn’t get into other flowers (they were all tangled in my zinnias & marigolds) would work - I’ll have to look around for another spot, but right now, no MGs next year.
You won’t have to grow them again; they’ll do that all on their own. Pretty much impossible to get rid of once established, like all too many other plants I can think of.