I saw some kind of leg band with some kind of fixing device / clip, but I'm worried it will get broken. I mean seriously, I don't want some elastic with a clip to hold it. Without mentioning it by name, it looks like an elastic band with some kind of plastic claw thing to hold the iPad.
Assuming you are talking about our Knee Dock here! We're all about openness here, so feel free to mention it! ;-)
The iPad itself actually gives a lot of rigidity to the design of the Knee Dock. The iPad certainly doesn't need pampering; it's an extreme solid device (unlike some plastic competitors) and so long as you don't drop it on concrete, you won't break it. The main thing to watch out for is scratching the
glass, but even that is pretty hard to do; it's hardened.
The strap is not elastic. We specifically chose this instead of the "standard" elastic+velcro because a) velcro sticks onto clothing and seat covers too and b) none of the elastic and velcro ones you can put on with one hand Knee Dock, you can!
I rest the dock on my leg, lift leg, pull strap through, hook the clip and tighten. Undoing it is just as simple.
Additionally, because the dock only touches your leg in two places, air can flow underneath, keeping your leg and the pad cool.
Last time Shagpile and I went upside down (positive G only!) in the RV, it just sat there on my knee, no worries.
I have been using a prototype (and now production model) for month and find it very reliable and comfortable.
Of course it is not for everyone; indeed, some people may want the fold-over clip board for paper, etc. But if you don't need that, I think our design is great: light, cool, reliable, not hugely expensive.