Yo, so I only ever played the lvl 20 trial during pre cata because my parents would never pay for a subscription to anything.
Once I got a job, cata had basically deleted WotLK so never got a chance to play it.
Now that WotLK Classic is here, would I be better off chancing cata in classic or should I just play the expansion in chromie time?
Correct, the Cata revamp only touched classic zones, not TBC or Wrath ones. Because of this, those two expansions are now the oldest content in the (retail) game.