I believe Ryano's insight in this question might be extremely incisive.
I think for some it just depends on what floats your boat. Do you want to be overall strong so that in your gym/club/meets you're a big man on whatever lifts are expected? Or do you love one thing and want to hammer it out to it's ultimate?
Me, I got started because I wanted to clean and press my BW. But along the way I found I liked just picking up heavy stuff no matter what.
And I love balance. I would dearly love to military my BW, but I also really want to do 10 pullups too.
Bottom line, I think this answer comes from within.
I am Anton Zdravko Martin!
Best meet lifts: Sq 150 Kg (330 lb), Bench 120 Kg (264), DL 160 (352) @89 Kg (197)
Best gym lifts: Sq 375, Bench 280 (pause), DL 385 @205 or less
Goals beyond my wildest dreams, 600 Kg raw total, 200/160/240
Hack away at anything which isn't essential. Do what you love, and do it often. Fazc.
Everything competes for recovery so more assistance is not always the best idea. miked96