See current pricing and offers on https://www.vegascreativesoftware.com/us/vegas-movie-studio/ (or your territory's version of that URL, including "de", "gb", "ca", "int" etc.)
New purchase Movie Studio 16 / 16 Platinum / 16 Suite: USD 49.99 / 79.99 / 139.99
Upgrade offers valid until February 26, 2019
(This thread is not for discussion about the rights and wrongs of the software.)