Might be a good business decision. Any popular game with in app purchases tends to get a "welcome package" from a popular patent troll, for example. If you are an indie starting out you might as well avoid the legal costs by just cutting out a state that isn't going to net you much gain by itself anyway.
Can you please expand on "getting a welcome package from a patent troll?" What would such a troll have patented -- the concept of in-app purchases? Is the "package" a lawsuit over the use of something which they claim is patented?
There are dozens or hundreds of patents in force on in app purchases. [0] It's impossible to write any non-trivial software without infringing hundreds of US software patents. And as long as there are software patents, it will always be that way.
