The only thing that comes to mind is worrying about listening for boarding info and making sure I don't miss it. Once my butt is in a seat, I'm no longer worried about making sure I get onto a plane at the right time.

It is still much more pleasant to do it sitting down with a drink, than breaking focus every 30 seconds to check your boarding status.

I have lounge access through my credit card but even if you don't, it's way cheaper to pay the airport lounge day rate than to fly biz class.

No, there is one thing. Once I'm in my seat I don't have to pay attention any more. This is worth a lot because they won't know whether you're the guy who's missing. And if you're in the lounge there's no way you make it to the gate on time unless you time it yourself.