kungfoo, there are diff levels of "desirability" even within turtle ridge. the best locations in TR are up on the summit past the main gate (not the smaller gated communities outside the summit gate), and even within the summit, you want to be in the area connected from view terrace. if you look at the map of turtle ridge you can see most of the sub-communities feed off the following roads: garden terrace, valley terrace, canyon terrace, crest terrace, and view terrace. only crest and view terrace sits above summit ridge dr. take a look at the architecture and design section of the forums and see bkshopr's post about feng shui. he mentions why for many practical reasons you don't want to be living below the main road.
it should come as no surprise that the neighborhoods that sit below the main road are suffering the most. do a search on here or google and you will find that the real estate fates have not been kind to homes on rose trellis and crimson rose, which tall hedge is right smack in between. there were far more overstretched, move-up buyers in the lower terraces than up on view terrace, not that all of TR hasn't suffered.
having said all that, IR is right that there's going to be more room to fall, but if you're heart is set on TR and you're going to be spending $2M on a home in this market, you should be able to pick and choose as your heart desires. if your realtor gets too pushy, there's plenty of others that would love your business. its not one of the reddys is it?