I reckon a few people here will rip into me for saying this but I'll say it anyway:
If I wasn't an ectomorph, my diet and training would have me huge by now. There's only so big I can get even when I eat properly and lift 4 days a week. I have a decent athletic frame now but I'm not 'big'.
If I made the choice to blast and cruise for the rest of my life then I'd really be going places. I don't like the idea of needles for the rest of my life though. I know some diabetics inject insulin daily (or a few times daily) and so it's not the end of the world, but I bet those diabetics would quickly give up the needle if they could swallow a pill instead. (Also of course, going into muscle is a bigger job than tummy fat).