Why not? If you are worried then use lens tissue. But the cost difference is large.
I just use my sweat soaked t-shirt during a shoot.. works well.. ;p If working under air-con and no sweat, use the breath to mist the lens up first, then use the t-shirt. ;p
At home, I use these...
http://www.edmundoptics.com/onlinecatalog/displayproduct.cfm?productID=1954

http://www.edmundoptics.com/onlinecatalog/displayproduct.cfm?productID=2520

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