Honestly, I just don't see how going from the BP2006TL to the AV123 Rocket 1000 is even an "upgrade" at all. If anything, it would be a "lateral/horizontal shift", but not an upgrade and I certainly don't think it's worth the money.
You know how every single company has their own anechoic chamber frequency responses and how these anechoic frequency responses are almost always significantly better than the actual 3rd party measurements?
Take a look at the Rocket 750s for example:
http://www.guidetohometheater.com/speakersystems/305rocket/index4.html
According to AV123, the anechoic response is 38 Hz - 20kHz +/-3dB.
But actual measurement from Ultimate AVMag showed 50 Hz - 20 kHz +/-3dB. That's a difference of 12 Hz. There was a serious dip (-10dB) in frequency response around 3 kHz, but that might have been room acoustic.
For the Rocket RSC200, the AV123 response is 50Hz-20kHz +/-3dB.
Actual measurement by UAVMag showed 55 Hz-20kHz +/-3dB, with a serious dip (-13dB) around 600-700 Hz, which again could be room acoustic.
Even on "sale", the Rocket 1000 is about $2,200 w/shipping.
The BP2006TL is 33 Hz-20kHz +/-3dB, without any dips whatsoever according to Home Theater mag.
The Rockets 1000 is said to be 29Hz-20kHz +/-3dB, but how do we know it's not really 41Hz-20kHz +/-3dB (12 Hz difference like the Rocket 750)?
No offense to anyone, of course.
Specs aside, I'm sure any AV123 speakers will sound great. But I just don't see how going from the Definitive BP2006TLs to any AV123 speakers is an upgrade.
The Definitive CLR2300 Center speaker, which is the perfect match for the BP2006TL, is measured (HTMag) 30Hz-20kHz +/-3dB, which is amazing by any standard.
Again, I'm sure all AV123 speakers will sound great, but just not quite an upgrade from your current speakers IMO.
Just my opinion.
Now an UPGRADE would be the Definitive BP7001SCs, which I paid $2,400 brand new at my local dealer.
Another UPGRADE would be the Definitive CLR3000, which I paid $750 brand new.