It's not really a question about living on 15k a week or 50k a week. Remember that football careers are pretty damn short in the scale of things and the time you're being paid really big money may only be 5-6 years of your career for the average player. 340k is obviously pushing it, but about 90% of players come back into the real world after they've retired and what can they do apart from coaching or something, and there's only so much of that and it's nowhere near as well paid as being a player...