Software patents stymie innovation and progress.
* Prohibitively expensive patents, or patents which are expressly prohibited act to reduce innovation. Innovation being a key argument in favor of a patent system.
* Patents were originally created to protect the investment made in inventing the useful Art. This cost of developing innovative software is the cost of a PC. There is no large cost outlay unless count unnecessary expenditure.
* Patent trolls are abusing the existing patent system. They aggressively target business unable to defend themselves against threats of litigation. The impacts small and medium business reducing their ability to operate.
* Patents on software are overly broad. So much so that you may as well patent ideas rather than created products.