Walmart offers the Littlest Pet Shop Style Set (pictured), model no. A7322, for $15. (Amazon offers it for the same with free shipping for Prime members.) Choose Site-to-Store pickup to avoid the $4.97 shipping fee. That's tied with our mention from a month ago as the lowest price we've seen for this set. (It's a current low by $17.) It includes three pets and 135 pieces to build a shop and accessorize it.
Also available is the Littlest Pet Shop Blythe Bedroom Style Set, model no. A9479, for $15. Choose in-store pickup to avoid the $4.97 shipping fee. That's the best price we could find by $9. It includes 95 pieces and the Blythe Littlest Pet Shop doll and Penny Ling pet.