Whatever you want really. Go get into chocobo racing and breeding if you want. run palace of the dead, do dungeons and gear up for raiding, there isnt really one end goal.
- - - Updated - - -
Yeah an hour or less 1-50 run gets you usually 2 shards for two V materia worth on my server 300k-500k each. Beats the Squadron, but them im also trying for all the padjal weapons, just got number 8, 5 to go.