That C permit is revolution insurance. It's a "plan B" if/when shit hits the fan in the US.
It's also an easy ticket back into the Swiss job market. If you need or desire to come back to Switzerland and you don't have that permit, the employer will have to go through the justification process and try to get approval from the immigration authorities. Many employers don't want the hassle.
Obtaining approval for another permit could be easy or it could be next to impossible depending on which way the political winds are blowing (they'll be blowing the wrong direction if unemployment rises above 5-6% here). The SVP/UDC was a marginalized fringe political party a few years ago. Today they are part of the mainstream Swiss political conversation; this speaks volumes about the attitude of Swiss voters toward immigration issues.
If you have the option to keep the AVS and other accounts active, I would do so. Historically the Swiss Franc has been a much better managed currency than the US dollar. As part of your overall wealth portfolio, some currency diversification is very prudent, IMHO.
So yes, I'd keep that permit. It baffles me that anyone would ever want to give it up.
Apr 29, 13 10:13