I really agree with you about the movie industry and also the music industry. That's because they didn't analyze that copying a movie or lending it to friends i

I really agree with you about the movie industry and also the music industry. That's because they didn't analyze that copying a movie or lending it to friends is actually a feature. There's also much more to music and movies than just the product. It's Art, it's a way of communication. It conveys cultural and ideological values. People can have a deep and emotional link with a movie or music. Adding "don't pirate this" movies and making it hard to share what you love with your friends is really killing what your business is about. Software is different. ISV are actually hurt by piracy. Platforms have died because of Piracy (Atari, Amiga), and most importantly it's possible to protect a little bit from piracy without annoying your users. I think asking for a serial number once or calling home from time to time is really reasonable. It doesn't affect the user experience and protects both you and your customers. Where you are right is when you say you must evaluate how much piracy costs you before doing anything. Copying your software must not be "trivial". You want to avoid the situation where it's easier to find a pirate copy than an original one. But spending months adding anti-reverse engineerings features is just plain stupid.