Its quite possible that Bahria Enclave could be generating genuine investment interest but my advice would be to remain vigilant and thoroughly research your options before finalizing a deal. Somehow, I am not fully convinced with this sudden boom in prices of non-possession plots here....I have fears of a "Bubbly" enclave developing (file bubbles are the worst).
Infact, a few days ago, my first cousin bought a plot file in enclave. Within days, he was being offered 2 lacs profit by his dealer whereas there were New ads being posted on various sites for same dimension plot, demanding the Old price! We even called up a couple of ppl to verify the ads, & they were genuine. Again it could be just a bizzare coincidence, but its best to remain alert to the happenings in the market.