You already know my addition! Titzy's in Royal Oak. I actually haven't been inside it yet. I saw it during the holiday parade and then I have checked the website. I want to go soon though. :
Elephant Ears in Ann Arbor is pretty awesome. Really good customer service and an amazing selection of stuff at reasonable (mostly) prices (we bought our stroller there about 15-20% less than Amazon).
Titzy's in Royal Oak is the best. They have a huge selection of adorable stuff for mom and baby. The prices are reasonable and they seem genuinely interested in helping and answering questions. I will say they have the largest selection of Nursing bras and fitted me when I had no idea.
Re: Boutique baby stores