Data-mining in the Uncanny Valley: An e-Commerce Puzzle

Here's a "psychology of data mining puzzle" for you.

I received the following email from an e-commerce site. (Names expunged to protect the innocent and guilty.)

Dear [Customer],

One year ago, you ordered the following product from [e-commerce site].

[So-and-So] Salad Bowl & Servers - Stone - One Size/One Size

We wanted to let you know that right now, your size is still available
from [e-commerce site]. You can order the same product again by visiting:

http://www.example.com/bin/z/ref/oneyear/...html

Or, if you'd like to view our entire [So-and-So] collection, please visit:

http://www.example.com/bin/z/ref/oneyear/...html

If there's anything we can do to improve our service, please don't hesitate to let us know!

Why would the e-commerce site think I'd want to buy the same product again one year later?

What do you think was the rationale for this email campaign?

Here is an important hint, if you want one. Stop reading, if you don't want a hint. (The e-commerce vendor in question has a name that start with zap and ends with pos, and has a particular area of focus.)