I think the goal and path has to be both strength and size. I've learned that size does follow strength. The only caveat I'd add (and it's a small one) is working around and through chronic injuries.
I'm 240# and not as strong as I look (Although I might be stronger than I think I am). My back is complete shit and my right forearm and bicep rebel on me now even with rows.
As such, I haven't pushed hard for more strength in over 8 months because every time I feel better and do, I re-injure something. Surprisingly, I also haven't grown much recently, although I have done a decent job of maintaining my size.
So at this point, for me, it's all about how hard can I train to maintain what I've built this far and whether and to what degree, I can add any additional mass with a moderate weight/higher rep approach.
I'm not saying someone should begin training like this, just that this approach is where time and injuries have placed me.
Complication makes it easy to explain failure.