Although I've been interested in plants and gardening for 40+ years and did data entry for years when I was working, I'm a bit behind the times regarding the internet! I never even knew about online gardening sites until September 2006 when googling for information about a plant I found DG. I had no idea people bought and traded seeds and plants online!
We only have two nurseries left in our area ... since the big box stores moved in, all of the smaller nurseries went out of business.
There is a wonderful nursery I love over near Orlando with a great variety of plants and garden related stuff but it's a bit far to visit very often. I do buy locally from the big box stores as well as our two remaining nurseries when something catches my eye but I love co-ops and trading on line and the past year have purchased from online vendors a few times.
So ... I guess I am now officiallyTeam Both.