Look, when someone posts a deal on here, sometimes it's not available to everyone. Heck, you see YMMV deals on here all the time, only for a certain small area. How much MORE then should I post a deal that's tax free in 47 states? What, so I should omit the deal to 47 states simply because 3 don't qualify? What if there were 3 states that don't have a Best Buy location, or Target, or whatever? Should a person posting a related deal then NOT post it simply because there are 3 states that can't access the deal? No. If it's a deal available to the majority of the country, you can believe it's getting posted.
I know you must have been dying inside to share this information, but I looked up the policy on Newegg and Amazon, of which Newegg states they charge tax only in CA, NJ and TN and says nothing of use tax. Amazon's policy, however, DOES mention use tax, applicable ONLY IN SOUTH CAROLINA AND TENNESSEE. Furthermore, there are casual purchase exemptions. This isn't law school. It's a deal by a retailer that doesn't have a nexus in 47 states, and therefore does not charge sales tax. Use tax is a separate issue and does not negate the fact that sales tax is not charged.
I think you misunderstood my post. By all means post the deal. It's still a deal. My beef is with the expression "tax-free" because that is factually inaccurate.
I don't want to get into an argument with someone who obviously doesn't know what they are talking about, but Amazon/Newegg policy is not law by any means. They are not required to charge you tax in a lot of states still (the nexus issue is still being worked out, for now Amazon is only charging sales tax in states that have passed bills explicitly stating that Amazon has to), because the end-user is ultimately responsible for paying the taxes.
Please don't turn my post into a troll-fest. I was merely trying to enlighten you (and hopefully others) on a little understood tax law that could potentially have significant consequences. Most states don't pursue use-taxes unless the purchase is significant (examples being car or boat sales), but this is a very hot issue with a lot of states and they are actively looking for ways to best enforce these statutes. Just be aware of your individual home states' rules on the subject so you don't wind up with penalties. Remember ignorance of the law is still a very poor excuse.