I used Lightwave before switching over to Blender. It's a good software, but the last version was originally released in Nov. of 2014, not 2015, so that puts the revision cycle on more than just two years. Most high end software is updated every year. Just look at products from Maxon or Autodesk. New versions are put out on a yearly basis, which may be too soon for some users, but that's about the standard for the big companies.

If you are an animator, btw, you should really know before you order the software that you will be severely handicap by having only ONE undo in the layout interface. You can set multiple undos in the modeller interface, but not the layout. That is a huge limitation. This means you can't experiment with motion modifiers or anything when you're working on a scene, or else you have to go all the way back to your previous save. So basically you should save multiple scenes when starting an animation so that you can go back to any point in the history you want, because you won't have an undo history to work with there.