I do like that they added the Egg Hunt as a holiday tradition in Seasons. I'm thinking once I start playing a family again (currently have a Sim in University) that I should add an Easter type holiday with the egg hunt, grand meal and attend religious ceremonies since that was part of my family growing up. And other of the challenge rewards are available -- you can get sugar skulls by making an offering at a grave, the seeds for the Plantsim challenge sometimes show up in the rare seed packets (and the stump is in regular Buy mode), and I think you can buy Growfruit at the ranger station if you have Outdoor Retreat. I wouldn't mind having more challenges either; I enjoyed most of them especially the ones that give a tangible reward like the bunny.
