Again, it is opt-in specifically for the daily emails. Our existing newsletter base isn’t on these - I’d say through 3 days we only have about 50 people signed up for the daily specials, which is fine by us. Honestly, I/we aren’t really concerned about it. They can unsubscribe/re-subscribe at will in their My Account page, and this “newsletter” is different from the more important monthly one. Email is an alternative, not a requirement. If they’d rather get updates via RSS or the car forums, they can do that too. No one is forcing the daily emails on them.

One noteworthy is Woot.com’s marketing focus. It’s about getting products for the customer base, not customers for the product base.

*the daily mail.
Tricky. Even if you have highly interested subscribers,your list fatigue could be a battle. Can I make a couple of suggestions.

a) RSS, not instead but as an option. I think it works better for high frequency communications.

b) Big unsubscribe button + Recovery on the unsubscribe page. For example, Have three options. “Unsubscribe. Stop sending me emails. I mean it.” ; “Take a break. give me a couple of weeks off” ; “Until further notice” ; Unsubscribe me “Ask me again in a month”

I’d want to split test the unsubscribe/recovery page to get it just right. My guess is that being a little charming may go a ways. That’s the reason I’d make the unsubscribe button big.
- You have a better chance of recovering if you get them to unsubscribe 1 or 2 mails/days before they go hunting for the button.