Cheapest price for this relative new mouse. The cheapest price is $167.80 + Shipping from MegaBuy according to StaticIce. It's even cheaper than the G900 ($149 + Shipping from Wireless1 according to StaticIce).
Spec:
Tracking
Sensor: PMW3366
Resolution: 200 – 12,000 dpi
Max. acceleration: tested at >40G*
Max. speed: tested at >400 IPS**Tested on Logitech G240 Gaming Mouse Pad
Responsiveness
USB data format: 16 bits/axis
USB report rate: 1000 Hz (1ms)
Microprocessor: 32-bit ARMDurability
Main buttons: 50 million clicks
Max. distance: tested at > 250 kilometersBattery Life
Default lighting: 24 hours
No lighting: 32 hoursPhysical specifications
Height: 130.3 mm
Width: 66.5 mm
Depth: 40.4 mm
Weight: 110 g mouse only
Cable Length: 1.83 m
Can highly recommend this for Minesweeper !!!