Yay for eBay where you can find ANYTHING!
The A*G Minis line was released in October 2000. The basic setup consisted of a light box, that could include a clear shield for the front and a drawer to store small parts in. The sets were small and elaborate, targeted more towards older children. A complete room was around $178 (much more than a doll) and decor sets were about 20 dollars. Each set had wallpapers, furniture, lights, and other small details to make the room look realistic on a small scale, much like a doll house. Discontinued 2003 - American Girl Wiki
I do not own any of the AG mini set ups or furniture. These rooms are so inspiring I just had to share! You can find pieces from different collections/rooms on eBay.
I love this outdoor oasis. I know my minis would love a place like this to have BBQ get-togethers. The mosaic table - amazing!!
Mini Nicki and Saige would just love the horse stables!!!!!! (Don't you?)
The Diner is by far my favorite.
This one is on EBAY