That depends on what the companies mean by re-coning or if they mean re-foaming them. A good company who does re-foaming will re-foam the cone surrounds, verify voice coil is centered and aligned and then test to make sure they match specs. The one with the tear, depending on how big it is, may be able to be repaired with some Alleene's glue I believe it is. Check the threads for a guy who bought a pair of McIntosh HT-11's with a small tear in one of the cones and a surround. One person suggested using a small piece of nylon hose on one side with Alleene's on both sides to patch it. Keep it small because you make any additional weight as small as possible.
I believe Alleen's is available at most WalMarts or other stores and is pretty cheap. I haven't done it myself but most folks on here, even newbies who've never done anything like it before have successfully done a refoam on woofers. If you feel up to it I'm sure you'd have a blast fixing them yourself, learn a lot about your new speakers and there's always that sense of pride in having done it yourself. Whenever I resurrect something I thought beyond hope the music sounds even sweeter. If you have the time I'd suggest going for it. While you're doing the three without the tear you may want to just get another speaker to replace it and be sure you're starting off right. Either way you'll be learning a lot in the process. Just take your time and be patient. It's worth it.
Plus while you are in there you can check your crossovers for problems, maybe replace the caps, etc.
