re Modern Chess 60% or 70% rebates: they are so frequent (esp. the 60%) that it's not worth buying otherwise, and of course it all comes down to the usual $24-28 range that is their expected sale per customer. Couple of good points tho:
- when buying 2 or more pieces, you often have an additional 10% discount, regardless of the rebate.
- for short periods they go up to 70%, without modifying the base price. They even make some math humour: I had a mail saying "Dear customer, you knew our 60% rebate, our 70% rebate, and now we have an incredible offer just for you: before our 60% rebate, we apply a 25% rebate for our best customers!" Very funny when you do the math:
- with 70% rebate, $1 becomes $1 * (1- 0.7) = $0.3 so far, so good
- with 25% rebate, $1 becomes $0.75 An extra 60% rebate makes this $0.75 * (1- 0.6) =$0.75 * 0.4 =  $0.3 Surprise!

Nernstian59 wrote on 11/16/24 at 20:03:35:


You are correct. The sales price is available if you use the promo code.

When I posted, there was no promo code that I could see, but it's clearly there now.

I can't answer that question.

On a related note, Modern-chess sometimes has sales that provide a deep discount. As an example, they sometimes have an across the board 60% off sale. They currently have a Black Friday sale of "up to 70% off." It's not the same thing! I checked one title and there was no sale.