I'm sure there will be ways to get around the coming restrictions for players, but the key is that the industry itself will be crippled with the bulk of the US market gone.
My own decision about how to proceed is based on one simple principle. I'm not a criminal. Never have been, never will be. Up until this law goes into effect, I've had no problem promoting online casinos, because there was no federal law making their business a crime. Once Bush signs the new bill, when they accept payment from a US player, they'll be breaking the law. (Note that many of the biggest and well-respected names in the online gambling business share my view. Many are closing all US accounts.) That means I can no longer promote them in good faith, at least to the US market.
In coming days, my sites will be changed around a bit. Foreign visitors will likely still see online casino ads, while US visitors will not.