Quickbooks Pro for Win7 - can I use a used copy of Quickbooks 2010, 2011 or 12
I see downloadable copies of Quckbooks Pro with registration and key information for less than the cost of new Quickbooks Pro. Will these work or is it a scam? How about used copies. I don't care about registration, just being able to use these on one computer. Also, why is Quickbooks 2011 often more expensive than 2012?