I have two plates from DVLA which from memory were either £250 or £299
OO05KOO (my initials are SK)
and
OO05PDK (my full initials are SPDK)
Don’t think I would buy from anywhere else.
It is only the starting point. I don't think its that all cheap either. A good price for a 3x2 (2x3 are cheaper) isn't much over £2k. It just might work that its not silly cheap for an entry point so puts people off just "having a go" which means the eventual price is still good.