Bought a 5700xt on release for £400, ran that til last year when the 7900gre released in the UK. Can't remember what I paid but it was a lot less than the flagship 7900 and I forsee lasting many years as I have no desire to go above 2K.
AMD GPUs have been pretty great value compared to nvidia recently as long as you're not tying your self worth to your average FPS figures.
Was this the first fully fuelled boom? It looked fucking enormous.
I remember seeing someone doing the calculations for this happening some time ago and it coming to a shockingly large amount on the usual TNT comparison. Though this is more like a mix between a traditional explosive and a fuel air bomb.