I like the idea of taking the machine to a repair shop to see if a replacement plug will make the machine work. If it does, I would buy the plug there as you are sure of getting the right one. It it doesn't work, then I would leave the machine there to get an estimate of repair cost. (Be sure they understand you want to be called before repairs are actually made, as it could be pricey depending on what the problem is.) At that point I would also buy a new machine. Even if the old one gets fixed, it's a good idea to have two machines so you always have a backup.