I vote for keeping it and renting it out. The current investment climate is pretty sketchy, IMO. Lots of reasons to think that we might have another crash in the near future (margin debt levels, the weakened position of the Fed and the US Govt to do anything should something bad happen, etc.). OTOH, asset prices might keep rising if everyone begins to fear that the USD will no longer be the world’s reserve currency, in which case your house might be one of the best possible things to own, as opposed to stocks, IMO.
The other posters bring up good points for you to consider, so definitely take some time to run the numbers and do what feels right given your circumstances.