I bought the LaRegina DOPs at Venda Ravioli--the tomatoes with the green label, not the blue label. With Venda, you cannot assume that their website has all their products. I was told by the person I spoke with, Robert Coccia, that their products and prices change so often that they don't try to keep the website up to date right up to the minute. Also, products that are hard to come by, or the prices are too high even for them, don't make their way onto the website. So, you have to call them and ask which specific San Marzano tomatoes, DOP or otherwise, they are currently carrying.
When Venda changed their shipping cost structure (it's higher now) and I threatened to cancel an order I had initiated, I was told that they would like to have me as a customer and, to cut on the shipping charges, they could pack the tomatoes I ordered in a cheap box. I thought this was just a meaningless gesture and they would use their normal packaging procedures, but when the tomatoes arrived they were in a cheap cardboard box wrapped up and taped in the most amateurish way I have ever seen
. Maybe you can ask for the same shipping approach and see if you can get a discount for volume purchases (but don't be surprised if they say no to the latter because their prices are very good to begin with). FYI, I did a fair amount of online searching for the LaReginas, and the only two places I could find that sell them online are Venda and Salumeria Italiana.
You might also want to look into another brand of San Marzano tomatoes, the Famoso San Marzanos, also DOP and sold by Venda. I like them and although they have a more watery packing liquid than the LaReginas (which have a thick puree), the fruits themselves are very nice with good color. Also, the Famosos, which are also a product out of the Northeast, cost about a dollar less per can than the LaReginas DOPs. I suspect my now mentioning the Famosos in this post will get scott looking for them and doing a shootout with all the other San Marzanos he has