Here is a page that describes some of the reasons why
we switched to a subscription model several years ago:
http://www.e-valid.com/Products/subscription.model.htmlSome of the new features in V8 may be useful for you,
and some updates are invisible (performance and reliability
improvements, etc.).
V7 support will be ending soon. So if you ever have a question
about eValid not only would we be unable to answer it but
we would actually request you install V8 so we can address
the question/problem.