Usually the big hatches (like Holiday and Back to School) are not centered around any version of Tama or other VP, people can hatch what they want, and as for the Christmas/Holidays people are going to get (plenty) of new VPs and they want to hatch their new ones.
Themed group hatches and challenges work better when held in messageboard than in real-time chat.
Once I had none VPs active so I hatched a chicken egg in Harvest Moon farming video game and pretended it was virtual pet

Then later I sold the chicken to poultry dealer and got 1500 in-game currency
