This statement comes across, to me, as similar to "I've only ever driven a small 2-door car with an automatic transmission and gear selector on the steering column, so that's what I want for my next car."
If a jacket-style integrated BCD with an Air2 is what you like best, then fine. But, I definitely wouldn't let the fact that that is what you have been using constrain what you buy next. BCDs are not rocket science. Your profile says you have over 200 dives. Even if it's only 1 or 2 trips a year, I would think you'd have no trouble adapting to whatever BCD you buy - whether it's a jacket-style with an Air2 or a back inflate or a BP/W and whether it's an Air2 or a traditional style octo or even a primary on a longer hose and an alternate on a bungee necklace.