I'm sure it's becoming abundantly obvious that I shop at Lowe's a lot. It's a bit deceptive. My boyfriend and I have a lot of DIY projects that require almost daily trips to a hardware store, and Lowe's is dead close. Every time we go in, I HAVE to look at the sale plants because it's ridiculous how many fabulous plants are out there. I can see why the plants wouldn't sell at full price because they aren't blooming or there's some damage, but with a little care and time, the plants generally rebound without much fuss. The other day I found a couple tropicals with gorgeous colors.
Thankfully it's March, and the threat of seriously cold weather has passed. Even if I treat these tropicals (generally houseplants) as annuals, it was worth the $3.50 I paid for each one. These plants probably just needed a soil change, which is easy enough.
Random Side Note: I also prefer Lowe's because they mark down plants rather than ship them back to their whole saler or nurseries. Home Depot will return damaged/unsold plants which is a waste of energy (transportation). Consequently, you will never find plants on sale at Home Depot unless it's a promotional drop in price.