I don't know how anyone could possibly say that daycare is best for the child. Most basically put, you are paying someone to be you. If you have the ability, you should raise your own child and not out-source it. You will not ever get this time back.
Prime example: A few weeks ago, I was at the park with my children. There were several nannies sitting around talking (bitching about pay, hours, etc...). The children were asking me and another mom to push them on swings, while their very well paid and I am sure highly recommended nannies blew them off. They wanted and needed a mommy. Nobody will love your child like you do.
Before you know it, your child will be in school, and you will have the time to work -- for the rest of your life. If your child grows up in daycare, you will miss all the milestones, and he probably will not know you as his primary caregiver, because frankly, you won't be. The woman who stated that her child was so excited to see her when she picked him up hit the target. The kid was saying, "Get me out of here!" He wanted his mommy.
By the way, I'm a 33 year old SAHM with 2 (10 mos and 3), and I'm a part-time attorney, working mostly from home, and do not regret it a bit!