Can you keep re-vegging a plant forever?

I put some plants outdoors in early February, I know its too early, but I only put them out there because I didn't have room indoors and I was going to trash them anyway. To my surprise they actually did quite well, without food or anything. They also started flowering because the days were still short. They didn't quite mature, but the plants were starting to show signs of re-vegging (i.e. new twisting leaves, lull in bud production) So I just finished cutting the tops off and I will feed them some nitrogen in the near future. This is my first experience with re-vegging, I have been reading about it but haven't seen anything about how many times it can be done.. and then THAT got me wondering if I could keep these plants, which have impressed me so much, alive forever in the ground outside? Is it possible keep an outdoor plant alive through the winter and then just keep re-vegging it?? Cuz I would sell all my lights tomorrow, lol. seriously though..

doubt through the winter time.... but a plant can be re-vegged through a skeleton, (plant with no leaves on it) http://www.youtube.com/watch?v=kwhMrCss-D4

I don't think that would work friend. It would start flowering again come late July early August. You always take a few clones and keep them in veg inside.

I've re-grown the same plant twice, after that it doesn't pay to keep re-growing. Every time you snip a bud you are replacing
one bud site with 2 small sites. After 2 times you are just scraping fuzz, eh?

BigSteve.

its not worth the trouble to re-veg. take clones or make your own seeds.

I would think that there'd be a point of diminished returns.