We purchased our Hunter Douglas Blinds at Costco. It was quick and the installation was excellent. However, there was a problem with the blinds. Costco re-made and had them re-installed in 2 weeks - no questions asked, no problem, and of course, the blinds cost less than anywhere else.
These days, electronics retailers are a dime a dozen. It's no surprise that some of the best deals come from big stores such as Costco. But I find Costco even more unique when it comes to buying a computer, television or any electronic item. Their return policy and warranty are amazing.
Unlike other electronic retailers, you don't have to buy the extended warranty. It's an added value. With the purchase of any big ticket electronics you receive a 2 year warranty. Two years! This alone makes buying a computer or television from Costco worth it.