The fears are overstated. A well managed building will do just fine, and survive much longer than 10 years. Luna/Luna Vista at CityPlace is now approaching 5 years old with absolutely no issues. Maintenance fees have never increased since it was built, and the reserve is much larger than required. Management has been pretty proactive with anything that may eventually become an issue (ie. Elevators were problematic, but management negotiated free maintenance for an extended period, and purchased spare parts to ensure that they are ready for anything that may happen in the future).
I don't think any of the older buildings are facing any issues either. Matrix/Optima had the balcony issue, however, it was repaired at no charge to the homeowners. We're talking about 21 buildings built throughout this boom within CityPlace alone that are faring quite well so far, with only two buildings having issues. If CityPlace can manage, I don't see why other buildings would be in trouble, especially since many are much higher quality.
The falling glass issue at Shangri-La had nothing to do with maintenance or becoming a ghetto. It was a supplier issue.