My current situation is similar to yours, RikR. I rowed OTW (both flat water and open water) years ago, and owned a Pocock teardrop racing single, and then a Maas Aero. However, when I moved to my present location, the ratio of preparation -- loading, driving, unloading, setup, then reverse to get back home -- to rowing got unfavorable. I didn't have that kind of time.
I joined a local rowing club that was just starting up (I helped bring two 8s over before I'd even paid my dues), but again, I wasn't getting enough actual rowing to all the "other stuff", plus it was expensive to do that, so I stopped.
I bought a set of slides with the proceeds from the sale of the Maas, and now I just close my eyes and dream of being on the water while I'm erging. To get outdoors, I ride my bike and tandem with my wife in the summers.
Given a choice, without all the hassle, I'd definitely be rowing on the water. It is a wonderful thing! Quiet, beautiful, birds soaring overhead, being connected to the water. Awesome.
If you have a chance, even with the associated hassles, to give it a try, I say DO IT! Even if you don't stick with it, the chance to try it should not be missed. Then you'll have some visuals in your head to help pass the time on the erg staring at the monitor or a TV.
Mark. Rower first, cyclist too.