This is something I keep bringing up when people start comparing "ripoff Britain" prices with those in the US.
Firstly, people always forget that sales tax (i.e. the US counterpart to VAT) isn't routinely included in prices there, not least because it varies from state to state anyway AFAICT.
But yeah, there's also the fact that sellers in the US can get away with ridiculousness that wouldn't be allowed in the UK. Like- IIRC- 90 day typical warranty on some consoles like the PlayStation (I forget which generation that was), and I've even heard of some new laptops coming with a 30 day warranty.
At present, UK and EU regulations would likely see any attempt at something like that. (Contrary to what some people think, EU regulations *don't* give you an automatic six year warranty, but as far as I'm aware, for something it would be reasonable to expect to last *far* longer than 30 days, they wouldn't get away with that. IANAL, YMMV).
We'll see how long that lasts after the UK is dragged out of the EU by the same hard right Tory and UKIP sympathisers that want a trade deal with the US- one in which you know the larger US will be in a position to dictate the terms such as "harmonisation" with their godawful consumer standards- something I don't expect the aforementioned mock-Little Englanders to resist since they're mostly in favour of a low-rent, race-to-the-bottom free market economy anyway (#)- but that's another kettle of fish.
(#) You actually believed that "£350m extra for the NHS" claim from the same party- UKIP- whose members have openly opposed the NHS in the past? The same claim that UKIP themselves stopped pretending was anything other than BS as soon as they'd won the vote? You utter gullible f***wits.