About the same income for me, but I'm able to accrue enough miles through credit card spending and other means such that I've never paid for a business class seat, beyond the $5.60 for taxes, and the occasional fuel surcharge. I only take about a half dozen flights a year though, so I'm able to earn enough to make that happen.
I wouldn't pay full price for it though. I'd rather drive at that point (or just not go)