true, but i'd guess that the 20 year old customer doesn't buy many extracta once he's bought the first one. i do understand why they'd want to turn them away as quality carpet cleaners will be put off if the cheap ones are heavily advertising that that's the machine they use, but if they they turned them away they'd still end up selling to these people as they wouldn't know what each new buyer is planning to be like. i could order one now under just my name and they wouldn't know if i was planning to do the same, they may realise with one or 2 and lose some sales but it wont stop the issue.
the thing that confuses me is that the initial post suggests that these cheaper people are saying how they use the best machine available which is the extracta, so the customer leaves the guy who uses that machine.