Radeon RX 7900 XT hits all-time low of $624

I have one - very happy I switched from nvidia after 25+ years of PC gaming and only one previous ATI card in about 2008. The RAM speed on desktop issue only affects me with 3 monitors (1 x 1440p@ 75hz and 1x 11440p @ 85hz is fine). It's quiet, blazingly rapid and stable. I much prefer the AMD control panel / overlay and really don't care about ray tracing. At 1440p Ultra, Toms has it above a 4070ti Super and below the 4080. Why pay £150 more for a slower nvidia card?