Corpsey
bandz ahoy
I think my preference for tinkering vs over-production is that the first doesn't exclude people who don't know any synth programming skills and can find something useable out of the box and make music with it. I think there's a lot of people who have a natural talent for music who are put off by the often quite steep learning curve whereas that learning curve often seems quite attractive to producers who don't have the musical talent yet can turn out perfect mixdowns of cliched ideas. I often find the most interesting ideas often come from people that don't realise what they're supposed to do musically - I've heard people tapping out more interesting riddims on tables than I hear in a lot of tunes recently.
Think there's a lot of people in electronic music that should really be either musician or engineer but not both. I'd probably make plenty more music if I didn't find mixdowns such a lengthy and dull process, but some people seem to love it.
There's probably a connection between genres becoming stale/self-regarding and the mixdown/technical-prowess level being raised - in dubstep, for example, there's obviously more people than ever before trying to make it, but for the most part its only the people with extensive technical knowledge (i.e. GEEKAZOIDS) who can compete... whereas in a genre in which low-fi production levels aren't a problem, anyone can have a go, which means (perhaps) that there's more chance of original ideas breaking through...
It's more complicated than that, but I'm sure that has something to do with it.