I am a non-US person. I was very close to set up and transfer my startup to a new C Corp in the US in order to get better payment APIs and make the startup more attractive to VCs. The patent trolls in the US is one of the biggest reasons why I choose not to move my startup to the US, at least not until I get funded. I guess many others also choose to stay away of the US for this reason. The total loss of business in the US must be great.
Having money in the bank means that can afford lawyers, but it also means that you are a more attractive target for litigation as you are then worth suing (if they are after cash).
[NB The startup I co-founded years ago was involved in deeply unpleasant litigation soon after getting our first round of VC investment. Fortunately our lawyers made them go away.]
