We thought about it but ultimately decided against it. For one, we just didn't think he'd enjoy the structure.
Secondly, he's SN so people tend to underestimate him and we don't want him to be unchallenged or bored. That's the main reason we are homeschooling anyway though. He'd be in Special Ed because of his speech disorder and physical limitations, but he's already learned most of what they teach in the mainstream Kindy class and the school year hasn't even started yet.
However, I can imagine that if we had more children, putting the youngest ones in preschool part time or a mother's day out program or something would be nice so that we could have some uninterrupted time with the older kid/s. So that's not something I would totally rule out for future kids. We're not quite to that point yet though!