Is there something I'm missing here?
Amps for studios tend to be very precise.
Amps for high end audiophiles tend to be "softened".
Crown and Bryston are are simply excellent amps but the harshness you get with precision is not necessarily what domestic owners like. Some will claim it is distortion from SS high power designs and high amounts of negative feedback but I think it is more a factor of designs slightly tailored to cater to the tastes of the two camps. (Precise "you get what you get" versus a more relaxing laid back or "musical" sound)
Some audiophiles will complain that studio gear sounds like a PA. On the flip side, studio professionals will often complain about the coloration introduced by home consumer systems.
Audio engineers will often spend time listening to their mixes on "dumbed down" consumer systems rather than rely on just the studio sound. this is in order to see how the mix "translates" to the widest audience.
So what you get on most commercial recordings is dumbed down (especially dynamically) from the real thing anyway.
If your tastes run towards the precise approach then you are lucky because, indeed, some pro gear is good value compared to audiophile designs. However, teh converse is also true...some pro gear is stratospherically priced and many top studios are well over $1 million invested in gear/acoustics.