We have only one local nursery up here. The plants are ideal for our area, and they are started locally, so they get a nice start. However, each year they trot out the same three varieties of cucumbers, six varieties of tomatoes, two varieties of pumpkins, and so on. I know what they have before I even walk in the door. That's why I prefer the box stores. The Home Depot and WalMart up here have a huge variety, a dozen, at least, of each plant.
However, the local nursery has a 50% sale (or better) at the beginning of July each year. If I have a gap in my garden, I'll run in and buy some leggy 3' tomato plant for $4.95. By mid-July, it's begun to produce, and I can get tomatoes off it until October