Movable Type is free
As noted before Movable Type has been put under the GPL (Gnu General Public License) which means its open source and free as in speech and the bare bone version also free as in beer. We have used Movable Type from the beginning and just couldnīt - wouldnīt want to to migrate to a different platform as it always seemed to much hassle. Also we coughed up the small fee for a multisite blog (that was a point where we almost switched). This is all past us now and it seems we have bet on a long distance horse with our blogging software. Now I think a company developing the software and having their business model not to sell the software but to sell distributions and support will be the business model for all software rather sooner then later (quote me in 10 years). Because with a truly open source approach you have tons of helping hands in your code to make it better more stable faster secure and saturate it with plugged in feature at no cost. You as a company are still the ones who know the software best (you coded it from the start) so you are probably the best to help big corporations to install it - meanwhile the free nature of your software allows anyone to get used to and train them self to use it, generating a legion of enthusiast who in return will advocate your software over closed source alternatives giving you company a sustainable income - everyone is happy. This approach is also in my opinion much better then the all non leader community approach of free software (for example wordpress) with no real direction and to many side roads leading to stagnation or confusion among users (drupal is also one of those beasts, buts thats about to change to).
As said I think sooner or later most of the software industry comes around this business model. I am very happy that I donīt need to think about migrating the two active blogs.