Amazon offers Prime members the Armarkat 66" Cat Tree Furniture Condo in Sky Blue for $39.99 with free shipping. (Non-members can spend $49 to bag free shipping; otherwise, it adds $17.79.) That's $28 under our October mention and the lowest total price we've seen. (It's a current low by $5.) It measures 66" x 38" x 24", and features a pressed wood construction, faux fleece covering, and 40-lb. capacity.

Also available for Prime members is the Armarkat 57" Cat Tree Furniture Condo in Ivory for $47.99 with free shipping. (PetSmart charges the same price. Non-members can spend $49 to bag free shipping; otherwise, it adds $20.19.) That's the lowest total price we could find by $19. It features two perches and a little house with a patio.