depends - in german-speaking countries, those domains will eventually catch on, since for us it's weird to type "oe" instead of "ö".
nevertheless, it still needs additional software to work right now and email facilities are not supported on hosting. the .com will not be worth much more than the .de in this case and only for local purposes...
hold on to it, then sell it in a year. important: it's worth nothing if you don't also get the .de version, which will be available soon.