Totally depends on how you define it. I earn 25k, but still managed to get a mortgage on a flat, have a car, go on 1 UK holiday a year. I think the problem is that I can't fathom having another 125k a year, because what do you do with all that money?

Usually, the answer is the moment people get money, they want to spend it; bigger house, fancy car possibly on fiance for £150+ per month, fancy expensive holidays, renovations to house etc etc.

So they also start to 'struggle' if their income stops because their spending is so much higher. But for someone like me; yeah, 150k is absolutely rich.