Does primedice has other events as well like Stake? Currently from what I can see, primedice has only a daily race. Events in forum are not announced on the main page publicly so players sometimes might miss out if they didn't visit the forum everytime.
Apart from this daily race I haven't seem to seen any other promotions they held yet, well, maybe they got stake got that cover for attention since there are more games on stake compare to just dice on Primedice. I guess it's self-discovery to find those events clearly they lack communication even here they miss to reply your question.
Most of the promotions are available on their official forum, starting from competition for regular players up to competition for VIP players only.
Similar to what we can see on Stake, but probably the euphoria is greater on Stake compared to Primedice.
Number of available games to play seems to be very important in this case. Stake has a lot of games including sportsbook and Primedice stays with dice game only.