I was in a candlepin bowling alley a couple of years ago and was chatting with the owners and when they found out I am a software dev they wanted to know if I could help them with their lane terminal software. The setup was rough: ms-dos, who knows what it was written in, a whole pc per lane (they had 20 towers running in the back room) and no remote administration -- the man who runs the software company makes some updates every year by jumping in his RV and working his way up the coast from maryland to maine, stopping to do maintenance at various bowling alleys.

These people seemed desperate for any kind of help because the owner of this software company was retiring within the next couple of years and there was no plan for anyone to take over the relationships, of which it sounded like there were dozens. If I wasn't happily employed I would have very seriously looked into what it would have cost to buy that operation.