Sorry, but that’s not representative of the market. I just checked “Captain Marvel” on iTunes Canada and it is $24.99 to own ($5.99 to rent). On Amazon.ca the same movie on Blu-Ray with Digital Code is $24.96. While it may seem that digital files should be cheaper they are not. Even audio albums I tend to buy on CD more than digital as the CD is usually cheaper. You have to remember that with mass market titles like Star Trek and Captain Marvel, the publishers are making thousands of copies and they usually get a discount on orders (in terms of CD/DVD/Blu-Ray probably also applies to book publishing as well) of more than 5000 copies. Whereas when you are talking about low runs of say 1 or 2 copies (like when I convert someone’s parent’s wedding video from Betamax to Digital or DVD) then you are able to see a little savings with file only (of course I always have the option of just charging the one price for both just digital and just DVD).
But then there’s also another elephant in this discussion and that’s inflation. Back catalogue digital files, the publisher may not change the price for years as they can’t be bothered to go back every month to change the price, but new titles are more because that’s the price now due to inflation.
I just had a quick look at some of my the Trek MMPBs I’ve got on my shelves. I don’t think they’ve increased by the rate of inflation for years.