Hm, I had saved some of their previous prices and the FE prices have fallen. Sort of.
The 3080 FE is down to £1700 from £1800, while the 3070 FE is the same as £1200 but their buying prices has gone down from £840/£960 (cash/voucher) to £780/£900. 3090 FE and 3080 Ti FE have dropped £100.
So in some cases they are just hedging their bets. Or the recent FE drop has resulted in more sellers.
The one I had been keeping an eye on is the 1050 (2GB non-Ti version - I thought it might make a good tide over since I was dumb enough to sell my 1060 6GB for £90ish September 2020, as it's a good card to have spare) which has gone up to £140 from about £90 when I first had this idea in Sept'21. That is some inflation!