Perfectly logical, and why I won't fly if I have any choice in the matter either. (If I do fly, it now has to be something so important that I'm willing to trade all my bodily privacy for it.)

Yes, you can get selected for patdown even without alarming the WTMD. This happens to my husband frequently -- he thinks it's because he frequently flies with a case of photography equipment, and the TSA considers that suspicious in some way. While they test his equipment with the sniffer, they pat him down. (Wow, that sentence sounds a lot dirtier than I meant for it to sound...)

I also spent a lot of time mulling over whether I'll choose scope or grope, if I absolutely have to fly. I decided on grope, even though I find that more personally upsetting. My logic for that: If I go for the scope, there's a decent chance I'll get groped anyway. Seems like anything from an underwire bra, to a sanitary napkin, to a fold in my clothing, could look unusual on the scope and trigger a pat-down. Might as well just get it over with in the first place.

And furthermore, with the grope, at least the person experiencing my junk is doing it to my face, and I can identify them. With the scope, I have no idea who is looking at my picture or what they might be doing with it (commenting on it over the radio, taking a cell phone camera picture of it, etc.).