Does it actually though? Genuine question having grown up here. I live with my partner, our monthly outgoings living on the zone 1/2 border are ~£800 each for mortgage, bills, car insurance, etc. Last year I earned ~£90k before tax. I don't think I would have earned anything like that amount working in another part in the UK. Even if my cost of living was halved I'd only be saving around £5k a year.
I'm relatively young I suppose and I don't love everything about London, but I see lots of benefits to living here outside of the income, too. I can also be in the (proper) countryside in an hour or so drive at the weekends if I want a change of scenery.
When did you buy? I get the distinct impression from friends that even well off techies are struggling to get a big deposit together for a London property nowadays.
The real benefit of living in London is that it'd be far easier to get another job if things truly went south.
The cost of living in Dublin is not much different from London though.
> there is almost no benefit to living in London unless you're young or work in finance.
What is the benefit to living in Dublin?