Fun is just as valid of a reason as anything else.
I'd decide first if you want a big knife, or a machete/golok/parang type object. The big knife will chop, potentially as well as a small hatchet or hawk, but should also be able to do more typical knife tasks. The machete like object should chop quite noticeably better, but might not be useful for say... Skinning a squirrel (which, is on the brain because in the Becker subforum someone used their bk9 for that).
Once you know what type of tool you want, then you can narrow down from there.
If it means anything, my trio for a while has been my folding saw, bk9, and Mora (for non backpacking anyway). Been quite happy with it. I don't chop much, and my batoning "need" has gone down a bit as well. So I've been considering downsizing it a bit, but that's neither here nor there.
Good luck.
Very true indeed...at the moment I am using a small machete I obtained cutting a bigger one. It chops quite well but you got the point...it does just that. Of course I can.do everything else with my A1 (which is the best knife I ever owned in more than 20yrs, even better than esee' and BK's that I love so much). But I was wondering if a bigger knife paired with a small Mora wouldn't be more effective.
Also that's the reason I was considering the A2... unfortunately I see that few peoples own an A2 and I can't find suggestions on this knife.
It is freaking expensive also...not to mention that is almost impossible to find someone who wish to sell its own...