As some airlines gut their frequent flyer programs, increase fees and cram more seats into coach, others are pushing the boundaries of flying luxury with of over-the-top first class suites.

Airlines are betting that these opulent accommodations will drive up profit margins and yield greater revenues per mile.

This assumption is not unwarranted. According to The Wall Street Journal, American Airlines' say that 70 % of its total revenue comes from just 25% of its passengers.

And the International Air Transport Association has found that first- and business-class flyers make up just 8% of all fares, but account for 27% of total revenues worldwide, according to The Christian Science Monitor.

And the high-end offerings keep getting better and better. Here are 10 first class airline seats that are probably nicer than your apartment.