To just quit and come back is not very realistic. The industry changes over time. You have to be involved and evolving with it. However, what you may be thinking about is a false choice. Here are some additional options.

• Go consulting. Try to get some gigs. Do it part time to stay involved and stay focused. Who knows, maybe in 3-5 years you will want to just do that full time.
• Pick up some hobby projects. Use them to learn new technologies. Build a portfolio of them.

When you do re-enter you don't want to position yourself as having been away and you want to be in the loop. Those are considerations. Or maybe just retire from computing and become a baker ;-)

There is also nothing wrong with deciding to do something else. You may find that if you do something else, your computing background will, later, suck you back into the industry. But who knows? Life is an adventure, isn't it?