Decred is about governance
Stakeholders get to vote on changes to the protocol along with the validity of blocks.
To have your say, you will have to buy a ticket to vote. Buying a ticket means you agree to lock up your Decred for a period of time.
The current price of a ticket is 133.07 DCR.
Voting is rewarded
Your ticket goes into a lottery for a chance to vote. On average it takes 28 days for your ticket to vote, but can be as little as one day or as much as five months.
When you vote, your ticket value is returned with a voting reward. Currently, this is 1.03 DCR or an annual return of 9.67%.
You can track the ongoing agendas at voting.decred.org.