Yeah, I definitely order less without Prime than when I have Prime. Part of this is that $25 free shipping minimum: I'll hesitate to order cheap things if I have to pay for shipping, so I wait until I have an order that's at least $25, and sometimes then end up never ordering them at all.

And I also use a fair bit of Walmart and Best Buy ordering now. Both do ship to store as well, though Walmart's is annoyingly lackluster because in-store pickup closes early in the day.