I wouldn't say you have been had, its a nice RBTA which around here at that size go for more than a mag. Plus if you like it does it matter what it is? Glass half full! (For what its worth a lot of wholesalers ship BTA as mags so maybe your LFS got had too)
What kind of LED's are they?
I keep mine ~20" below my kessil a350 set at 100% blue and 30% white. If yours are not losing color then they should end up being fine. My experience with bubble tips has been that flow, ph swings and temp swings are the most common motivators for wandering in a tank with low nitrates. The one nem on the far right is fairly bleached I would keep an eye on it to make sure it does not move into a cave.
Great looking tank