I tend to go to Sear's at the Mall of America. I like how my kids can stand next to numbers and watch them grow. They have a $14.99 sitting fee or you pay $30 some dollara for a two year Smile Savers card which waves that fee. Last month I noticed that you could get a Smile Savers card for $5. The only think I don't care for is they take a lot of pictures but will weed out the photos before you see them. They can't give you more than one photo of a same/similar pose. Stupid in my opinion. The one in Maplewood Mall is usually packed and can be delayed getting in. Once they forgot about us and after an hour I asked them and they found our sitting card. I've had other issues with them and no longer care for that studio.
I also go to Ron Burg Photography in West St. Paul. He is pricey. It's over $220 for an 8 picture proof leather bound book. A 5x7 is like $75 or something like that. He does do a good job if you are looking for quality and tons of pictures to sort through. No sitting fee has been charged to me. He does a beautiful framed portrait study like Sears does. This one has 8 squares in black and white that has close ups of hands, feet, butt, belly button, face...whatever you want for over $300 with frame.
I've also done the Kiddy Kandads at BRU. The freebie I got was okay. They didn't seem to understand the kids as well. I think because they were young and didn't have kids of their own. They couldn't get my kid to smile. Could have just been a bad day on my kids part but I just like Sears better.
A girl at work likes Sadies at the MOA.
Back 20 years my Aunt took her kids to ProEx and the paper has since faded and is not in great condition. I'm sure they have improved but wanted to mention her experience.
You have lots of choices. I think your cheapest with quality will be Sears, Sadies, and JCPenny.