They may not get a choice. There is no more regulated industry than finance, except nuclear technology, and it is one of the fastest to change. Every time governments gets a hard-on for any particular activity, they can change the financial landscape more or less instantly either directly via legislation or via the Federal Reserve system or by claiming national security.
In the meantime, digital currencies like Bitcoin, may be the next stage, i.e. proving grounds for attacking private accounts directly, since they are less protected yet have cash-like attributes.