Precisely that. When it’s busy, the proper buyers get all the attention. When it’s quiet, you convince yourself the messers are buyers and can be talked into buying something they have zero intention of buying.
Don’t worry, if he’s anything like the emailers wanting valuations from me he’ll want retail for his ‘minter’ - usually no history, bald tyres, shagged brakes, 2 weeks MOT instead of the 10 months he claimed + an extra 40,000 miles.