This is what roped me in... I was told "no pressure but we'd sorta like to try and beat another group from the SG..."
SCHWING! Citadel on challenge mode... Game on! And then I took my cheap ass to the P2W vendor and picked up Assemble The Team, Mission Transporters, and Team Transport. So... yeah, we won. Although the next TF duel we lost miserably due to some massive knockback from a PUG. Loads of fun though!
As with any MMO, a good regular guild is the *key* to keeping people playing and interested far longer than they would otherwise. And for me, PDF sure seems to be that group.