I'm in a similar situation. I just started teaching an online course last year and find it to be an interesting challenge that has invigorated my teaching, both online and in front of the classroom. Could you capitalize on the "flexibility" by teaching only online courses one quarter, or semester, so that you could travel, do research, go to conferences, etc...? I teach my online course in the summer. The extra money is nice and the flexibility is such that it doesn't interfere with my field work/research.
Unlike you, I don't have any problems with the administration or the technical support staff, so that makes things easier for me.
That's a good point about the flexibility. When I teach in the summer, it is online only. I guess it's not an all-or-none proposition. Maybe I just need to go off-line for one semester a year.