I have no idea where you get the idea that offering cash is illegal thats really laughable, it was the ONLY way to pay before debit and credit cards and its still legal tender as is a bank cheque or bank transfer
By not using a card the retailer saves around 5% in transaction charges which he can pass on to you. I presume you do realise they have margin of profit which in some cases can be 100% with some product. Not suggesting this is the case with Stax but there is still some margin to share. Personally I always haggle and never try to pay the asking price for substantial purchases, be it headphones, white goods, etc. If that retailer won't offer a discount I try another and you would be surprised what deals you can strike if you ask.
AFAIK, offering to pay cash in expectancy of a discount is illegal in the UK, so if found out prosecution would probably occur.
Also without the SRE-950S I'd have probably paid around £3100 via PJ, so assuming I was to get away with offering cash, then I couldn't see a UK dealer knocking £1400 off their asking price.
The price of £4500 for the 009's in the UK was in 2011, I've seen the price now at £3495 but the 009's have come down in price by quite a bit since they first came out.
Edited by complin - 9/18/14 at 4:52pm