Should you get out or stay in: that all depends on your own client base, profits and loss, available capital, and plans for the business.
This might not be a good time to stay in the business if it is your sole means of support and it isn't profitable, or if you were hoping to build up the client base and company for a quick sale.
However, if you're planning on still being a web host in another five years, why not stick around for the long haul? You'll still have your client base, you'll be learning constantly, and after five years you'll be able to say that you were actively in business that long.
Either way, there are pros and cons. Just - if you do decide to leave, communicate well with your clients about when you'll be shutting down, what they need to do to take their sites with them to their new home, et cetera. Who knows - if you decide to re-enter the market at a later date, some of those clients may remember you and how you dealt with them honestly, and they may come back for your re-opening.