No, it's the US tech average which is ridiculously high. (Seriously, London has some of the highest salaries outside the US).

I suppose I mean for the quality of life offered. If nothing else Dublin seems much better.

Dublin is gloomy, boring (pubs) and the only thing it has going for it is that other parts of the island are close.

London on the other hand is a lot more vibrant.

At least this was my impression from a short stay.

Compared to what? Surely the average just _is_ and everything else gets measured against that.