Just saw this on website of Chilean Embassy in DC:
VISA
No visa is necessary when you travel to Chile, only a valid passport. When entering Chile (By cruise, vehicle or plane), at customs, you'll need to fill out a Tourist Card that allows visitors to stay for up to 90 days and will allow multiple entries. You'll need to show this Tourist Card to Customs when leaving the country as well, so be sure you don't lose it. For more information on other type of Visa, go to the CONSULAR SECTION.
ENTRY FEE:
There is a reciprocity fee of US$131 dollars to be paid in cash (U.S. dollars) or credit card. The one-time charge is good for the life of your passport. Go to the CONSULAR SECTION.
TAXES:
Hotels waive Chile's 18% sales tax applied to rooms when the guest shows the tourist card and pays with U.S. dollars. On flights leaving Chile, there is an airport tax of US$18, or the equivalent in Chilean Pesos. On domestic flights airport tax is included in the airline ticket.
The $131 entry fee is as bad as China. Was interested to find out though that you don't have to pay 18% sales tax on hotel room if you show tourist card and pay in US Dollars; I guess they are hurting for US currency. ;)