it all depends if you plan to actually be flying on AA or a OW partner
I made 2M many yrs ago and not far off from 3M (which isnt anything different from 2M) I hardly fly AA except if no choice or cashing in some Miles during off-peak times
My Main benefits are no bag fees, Elite access thru TSA, and early boarding to get some bin space, exit rows for $0, and Lounge access which with having to pay for anyting in it is no Big Deal (no free interent or drinks no real food to speak of either)
personally I value my SPG pts and want to use them for Hotel nights or C&P
The best deal with AA is EXP but that requires 100k actual miles a yr, other then that level I dont see anything great about AA. So much so I went to CO instead and last yr switched to UA and sorry I didnt go to UA yrs ago
So if you wont be doing alot of flying , or not alot on AA why bother