The pros I've come across usually get their gear for free if they bother to mention it somewhere and have usually have enough money so that a room full of vintage guitars and amps is the norm. So I guess £2000 is sweet $% all to them comparatively if they actually had to buy it.
Then again so is a chalet in Switzerland, a penthouse overlooking Central Park, another chalet in Aspen, a house on Regents Park road and another in the LA hills.
What I'd be asking myself is that amp worth £2000 smackers to me. If it gives me the sound in my head then it's worth it, if it does not then it's not worth the money. Simples, click, click...