The bottomline here is revegging is a multi-week hassle. I would say it's reasonable to reveg if:
1. you've harvested most of the plant, but still need to get a cut. Reveg until you have a nice little branch to root.
2. your plants accidentally went into flower.
I am guessing your plant is small, so you'd like a bigger one for a better harvest. Consider starting over, rather than revegging. Or just start more to fill your grow space.