Don't be silly. Everyone can move to some Welsh town and buy a house for £100k! We're just too dumb to realise it!
Nevermind the fact that the reason houses are cheap is because there are no jobs in the town, so you'd be straight on the dole and living your best life with your new mates down the pub (which has closed, sorry) and nothing else to do all day but stare at your partner, who keeps telling you that her minimum wage shop job at 20hrs a week can't cover the food bill this week, let alone the heating (jokes), so you're having cabbage soup for the third day running wondering how you went from two higher-than-average earners who commuted into London with good jobs, good prospects, and a good social life with lots of friends and family nearby and money to spend... But somebody on a computer forum told you were stupid for spunking a third of your income on that two bedroom flat rented flat in Guildford to do so, let alone trying to buy something in Surrey, so now you're here.