No, its not silly or sad to cry for the loss of our beautiful little friends. Me and a few others have also lost hamsters in the last couple of days and personally, I have been sobbing since last night and though I was doing quite well until we got into the vets room and was pretty hysterical for about an hour!!! I have also got a huge amount from the other guys and girls in this forum, it really is a fantastic support network.
As for getting another hamster, I think we all take our own time, there is no right or wrong answer. After losing my gerbil I went about 6 years before I felt ready to get another pet, but now I feel in time that I'd like to adopt a little abandoned hamster who really needs love.
I'm glad you like it here