Price match has been worthless.  
They refuse to pricematch a local store even though their policy states they will.  
I had a gift card to use - I will just buy it at the other store - use gift card another time  
But not on anything worthwhile!!

The Company handled the incident badly. Worse customer support I have ever experienced in my life and I order aprox 1-2 million dollars worth of hardware a year from various resellers. Will never buy from them again.

BB are masters of bait-and-switch. BB will wait until you place and confirm your order, wait a few days, then respond with a message along the lines of "We no longer carry that item, but we will sell the EXACT same manufacturer item number under a different BB catalog number for a lot more money. Since you have already waited this long, BB is assured you will not only play more money but will also wait even longer, as BB may want to bait-n-switch you again to charge you even more money!" (paraphrased)

BestBuy.com is, in short, a worthless company and I would not do business with them; time and time again, they place excessive holds on your credit card, then turn around and cancel your order...to be avoided at ALL COST!

Advertised web pre-order price then cancelled 2000+ orders. Honoring rainchecks and their own web pre-order pricematch with B&M stores for certain customers only

Like a lot of people here, I ordered a GeForce 4 for 129.99, only to have my order canceled and my consumer rights trampled all over with reckless abandon.

I ordered the GeForce4 Ti4600 for $129 as well. Best Buy updated my order status no less than 3 times and sent me an email that my GeForce4 was "on backorder".  
 
Then, they canceled my order as a "systems error".  
 
Best Buy will only send canned emails in response to any email you send to them. At one point, Best Buy said all further correspondance on this matter must be mailed to a PO Box in Minnesota.  
 
They claim their Terms of Service (TOS) allow them to change anything about your order (even after it has been placed) including the price of the merchandise. If their Brick and Mortar stores adopt this TOS, be prepared to have Best Buy come into your car or your home and demand you pay any price they decide because they think they set the original selling price too low.

BestBuy burned me on a special they ran with Crucial PC2100 back in December (cancelled my order and claimed that the manufacturer has stopped making the product!) and then again with the VisionTek GeForce 4TI4600 deal. They do not require you to agree to their TOS when you register to make online purchases, nor do they in any way present you with the TOS and links to it on their page are small and nondescript, yet they reserve the right in it to cancel orders for any reason at their discretion. This is unacceptable.

cancelled my order and charged my account, never got money back

Bad Business Practices

Best Buy cancelled my GeForce 4 TI 4600 order. All attempts to reconscile my claim have been stonewalled by canned E-mail responses. BB even sold my E-mail address to a SPAM E-mail service called "Cheetah Mail" and my Inbox has been stuffed full of SPAM ever since. If you value your time and sanity, stay FAR away from the joke of a retailer.  
 
Turn On The Con...Best Buy!

Another GeForce 4 'Customer' speaking out.  
BestBuy cancelled order.  

Buy cancelled my order saying that "a recent systems error" allowed me to purchase the card and "due to the nature of this error, we have canceled your order for this item". They informed that their Terms of Service allowed them to take such action. I find Best Buy's actions to be irresponsible, unethical, and their failure to honor our contract illegal.

cancelled gf4 online order. spams appeared after signing up. Felt cheated aka bait and switch.

Best Buy placed ads for a GeForce4 on their website at $129. After calling to confirm the price was correct with corporate, I placed an order. It was then cancelled. The story has changed from database error to systems glitch to human error and is now being referred to as a "sale price that can no longer be honored". Add to this that the company is selectively honoring this deal in some B&M stores and not others. PATHETIC!