Isn't maya merely aimed at the high-end spectrum, for movies and films and such? I know a couple of folks that use both and they are pretty different applications - each just has their own way of doing something. As long as you know what you want the end result to be then you'll pick either up pretty easily.
At the end of the day if you can make something faster and better in one of the programs, then there's no real reason to switch.
I was considering getting maya just to see if I should be using that instead, but I figured why bother, it's just another piece of software that I don't need to learn, I can get by just as well with max and do everything I need to do. When the day comes that I realise I need to use maya for so-and-so then I'll pick it up and get started, but for now all I'd be doing would be stretching myself thin and not spending enough time learning all I can about max.
Also to address the 'hitting some random key' - that can be frustrating when you first start, but I'd really suggest going into the key configs options and just scrolling through everything, take an hour or two and just set everything up to suit you; unbind all those keys that your chubby fingers hit often or at least bind them to something non destructive.