DLF Magnolias: My investor's upgrade dilemma

Visited DLF Magnolias last weekend, it's definitely a different league. I'm currently in a 2BHK, thinking of upgrading, but this price range is huge. For an investor, is the capital appreciation still strong, or has most of the upside gone? What's the resale market like for such high-value properties? Matlab, who's the typical buyer in 5-7 years?