When to buy Phantoms?

[devianet]

I have the 2905s + REL Studio 3 + DPremier in a very large room and don't have any problems with high volumes and proper bass on all types of music, but of course they excel at coherency and detail at all volumes even very low. Having said that, the nature of the beast is such that I usually prefer to listen at moderate volumes as that fully recreates the ambience of the recording.

Sounds like the phantoms wouldn't be an upgrade for me, except in terms of funds and real estate freed up.