An interesting video where Adam Savage, best known from TV's Mythbusters talks about never having specialised in a particular making genre - preferring to be a Jack of All Trades rather than a master of any particular one.
This interests me as I'm very much a generalist and always have been. For my current job, this is pretty much essential. I need to be willing and able to have a go at any type of model making. OK, I'm not the best at anything, but then that's the situation most railway modellers find themselves in. You need a wide variety of skills to build a layout.
Being a specialist is fine, but limiting. The hours of honing your technique doesn't appeal to me much either. I have a butterfly mind and like to try lots of different things. And since the appeal of a hobby is that you enjoy it, I need to go with what works for me.
How about everyone else?