Should I reschedule my son's birthday party?

My son was sick on Wednesday and is feeling better but still is congested and has laryngitis - as well as me! He has a birthday party tomorrow and I was thinking about moving it to another weekend. I talked with the party guys and they said the next opening was 6 weeks away and at a bad time slot. I was thinking about just rescheduling til after the holidays. Half of my friends say keep it/ the other half say reschedule. My son obviously still wants to keep it tomorrow, but is that a good idea? What would you do?