Having purchased a student license 2 years ago, I am now stuck using an old version. While I would love to use the most recent version, I am not sure I
can justify paying another 55 euros just to get "Track changes" and numerous small improvements, and then having to pay again after 2-3 years.
On the other hand, I would happily pay 3$-5$ every month to be able to use the latest version. That way, you'll also be getting a lot more of my money,
and I think acquiring new customers will be easier.