B.B.
My son is almost 3 and has been in the same situation. That being said, I don't dare take him out of school because he LOVES it! If he is home we deal with a bored child. I also work in a school and one of the major topics of discussion from the younger teachers is how children who have not been in daycare/learning center/pre-k situations are out much more often than students that were because their immunity systems have been built up, so that is something to consider.
It has been a particularily rough winter, so keep in mind that spring is just around the corner! :-)