It depends on whether you are looking at online software or the desktop software which you download and install to your own computer. On the TurboTax site, it is 69.99 to purchase the CD/download for Deluxe--which includes one state's software and e-filing for up to 5 federal returns. If you get "online" Deluxe it costs $39.99 + 36.99 for the state software and e-filing is included--but you can only do ONE return. (Those prices will go up later in the filing season)
Personally I think desktop is a much better value--but it depends on whether you have any other family members who need to file returns.
If you want to go for desktop software you can usually find better prices on Amazon, Costco, Best Buy, Sam's, Walmart, etc.