Some interesting things from SquareTrade's website...
"My item was on sale. Can I get a Protection Plan for the full replacement value?
Your SquareTrade Protection Plan is limited in value to the purchase price of your item. We generally ask that you use the actual price paid for your item when purchasing a warranty.
If you bought your item for a retail website or store and got a substantial discount, the actual purchase price might be far lower than the fair replacement value of the item. In such a case, in order to make sure you have enough value in the warranty to replace your item after a claim, you are welcome to use the full regular retail price to purchase the warranty, as opposed to the price you paid. That may make the warranty more expensive than if you used the sale price, but you'll get more value in your coverage.
If you choose to use the full retail value to buy the warranty, please provide proof of the full retail value of your item when you submit your proof of purchase. If the full purchase price is shown on your receipt, that is sufficient. If not you can provide a local ad showing the original price, print out from the manufacturer's website, a national retail website showing the MSRP or regular price, or something similar showing the full value of the item.
This process does not apply for items from eBay, open-box, floor model, or store display items. For this items, we can only use the actual auction value or purchase price for your warranty."
"How long do I have to buy a SquareTrade Protection Plan?
You can buy a SquareTrade warranty on a retail item within 30 days of item purchase. This applies to warranties both with and without accidental damage coverage.
For an eBay item, the purchase window is 30 days following the end of the auction, whether or not you've received the item. The 30 day mark is a firm deadline because of our contract with our insurer -- generally, we cannot make exceptions.
You can get a full refund on your policy at any time within the first 30 days. You can also cancel your policy after 30 days, but the refund will be pro-rated.
Our friendly refund policy means you don’t have to worry about taking a risk by purchasing a Protection Plan early. If your item doesn’t arrive, or doesn’t arrive in working condition, or you decide for any reason that you don’t want the warranty, just let us know and we’ll gladly refund you the money paid for the warranty. After all, we’re here to help reduce your risk."
"Where are Protection Plans available for purchase?
SquareTrade Protection Plans are available to residents of the 50 United States for eligible items purchase from a retail store, retail website, or through eBay.
Protection Plans are available to residents in the United Kingdom through Tesco, Asda, and through Amazon.co.uk for items purchased from Amazon.co.uk or any other authorized UK retailer. See our UK home page for more information.
For customers in Canada, we offer coverage for purchases made at eBay US, TigerDirect. and CompUSA stores and websites as well as TVs purchased at Costco.
We do not directly offer warranty purchases to Canadian, UK, or Puerto Rican residents yet, but we hope to be able to in the near future."
"Can I renew or extend my warranty contract?
Currently, we are not offering renewals or extensions for the SquareTrade Protection Plan. Once the warranty comes to its expiration date, the warranty will be completed, and coverage for your item will have been fulfilled"