How bout a new retail theme?
First set, $5-6- Soccer mom- Dark blue minivan (and DARK BLUE DOORS!) and a Very stressed mother with groceries and small child. Perhaps they could use the castle princess head to give her the stressed look :-D
Convinence Store $15-20- Small building on a 16x16 baseplate. Has a checkout counter with pizzas, soft drink fountain w/ cups and frozen dairy goods. 2 shelves with goods. Includes female cashier and male customer.
Grocery Store $25-30- Building on a 16x32 baseplate. Many little features include checkout line, butcher/deli with sandwichs (Krabby Patties) and chicken legs, 2 or three sheves with boxes and such and produce section. Includes two shoppers, cashier, and butcher. Includes 3 new mold or brick built shopping carts and/or baskets.
Mall $80-90- HUGE building with several baseplates. 4 stores- Clothing, toy, sporting goods and Lego ( :-D )
Includes food court with several food stands and tables w/ chairs and garbage cans. Extras- Few benches, kiosk, some plants, and fountain complete with coins. Minifigs- 4 store personel, each with unique store specific uniforms, 1 food court "chef", and Three customers- 1 male, 1 female, and 1 boy to whine at the Lego store because he can't get the UCS Mellenium Falcon. Oh, I forgot the Stores would be modular, They can be put side to side or stacked.
Mall add-on set,$3-5 Escalator- Black stairs (or sum new creative mecanism) and Woman with shopping bags. USed if you chose to stack your store modules.
Also, there can be 3 more store modules that can be bought for, say $20, each with a few minifigs.
Whew! Hope you like those ideas! I know half of you probably dont want to rread all that, so thank you if you did! ;-)