This definitely depends on the specific job, but in general there are more opportunities for high paying positions and a higher salary ceiling. It also depends on where you want to live within London and the kinds of activities you want to take part in. For me, I've found I have way more disposable income since the move to London as I had a huge salary increase from my previous job in Edinburgh. Although I have much, much less free time and would say I'm generally more unhappy
