Good tip.  The first sig campaign I was offered years ago I think went on for an entire year and it was a raffle for a Bitcoin.   At year start it wasnt worth even 100 dollars and by year end it was over a thousand so everyone wanted to be in on it by then but it was too late to join.   Theres something to be said for going with any quality company or project you can read up on even if its theory not the best terms or your rank is new so its limited.    
These token offers are difficult to judge, which is funny because now BTC has become the gold standard and we have a vast array of followup crypto standards of all descriptions.
  I just found out my old October campaign had changed the terms after it had already finished without messaging people or even notifying the campaign manager and a deadline was laid down also so now they dont pay as promised.   Seems very unfair to me, quality counts considerably