The big box stores commonly sell it cheaper...that 's up to them. TTX cannot price match.
1) Make sure your computer has a CD drive...there is no download code in the box.
2) If buying Deluxe..and if you need a state, make sure you get the Deluxe version that includes a state software set. Deluxe CDs are also sold without a state download and the cost to add one exceeds the price difference on the box.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*