Right now Amazong as the GT with a $30 rebate, so will end up costing just $99.
http://www.amazon.com/Logitech-PlayS...=operasport-20
But I did see it go on sale on these sites last year for $70, and also seen the G27 on sale around that time for $200 range.
Wait a hair more towards the holidays, and they usually dip in price.