I'm not sure what "Retail Therapy" means. I checked with people in retail, however, and they explained it's more expensive than Wholesale Therapy. Wholesale Therapy has to do with groups. A group of people meets with a sales force, is given a spiel and then gets what they want at wholesale prices. Retail is always pricier than wholesale 'cause it's one on one: One sales clerk to one customer.
Hey, I'm just the messenger!
And I could be wrong! Retail Therapy might just have to do with Home Decor, Kitchen, Gifts, Jewelry, Bridal and Baby.