The thing was we got a bill from our server and WOW... we are losing money. Supporting downloads and server cost forced us to charge something for our products.
Despite this, Electrix will still free to share with your peers and copy it as many times as you want because it's not serializer or copy-protected, and won't be ever.
On the other hand, if you are on education field or you feel you deserve a free copy to show the world your talent, just email us.
Sincerelly. Sampleson dev team :)