I suppose you could compare it to designer clothes 'snobbery' Most of us are guilty of it somewhere down the line, we like to think if we spent a bit more money we will be safe with a tried and tested known product. The bottom line is there are other people/companies who can do some things better than others.
I'm not saying 'R-tech are better than revo' etc etc as I haven't exerianced enough of either company to be able to comment. What I think I can comment on is value for money though, and the numbers of satisifed customers prove that R-tech can offer a very similar product, with similar results for half the price.
ETTO and all that what not but I would be happy dropping my car off at R-tech (after a quick cuppa tea) and picking it up in a few hours time knowing it's not been poorly man handled by a bunch of chimps, and with a satisfying improvement in performance to return home with.
Now after all of this, wheres my 50% off voucher you promised me Nick

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Sam