Masters have this angle for only $40, cheapest elsewhere doing a quick search is $74 at Sydney Tools. I purchased the grinder this afternoon from Masters ACT, there were about 10 left. The item is not showing up on Masters' web store.
Details below are taken from Sydney Tools website.
Includes:
3 x Grinding Discs
1 x Case
Features:
Specially designed air inlets for optimal air flow and cooling
Small gear head for working in tight spaces
Gear head can be rotated in 90° steps
Armoured coils that protect motor against sharp grinding dust for longer service life
Auto cut-off carbon brushes
Two-motion switch for maximum user's safety
Spindle lock for easy disc change
Anti-rotation protective guard to provide reliable protection
Side handle can be used on right or left
Specifications:
Rated power input: 720W
No-load speed: 11000rpm
Spindle thread size: M10
Diameter:
Disc: 100mm
Rubber sanding plate: 100mm
Wire cup brush: 70mm
Weight: 1.8kg
Not bad price for a 100mm grinder.
Comparing with Bunnings, the Ozito brand is $49 and Ryobi $59.
http://www.bunnings.com.au/ozito-850w-100mm-angle-grinder_p6…
http://www.bunnings.com.au/ryobi-750w-100mm-corded-angle-gri…
Masters also have the Wesco, currently at half price for $25 (cheapest between both Masters and Bunnings)
https://www.masters.com.au/product/100488779/wesco-750w-100m…
Next cheapest I found on Masters website is this Bosch for $59:
https://www.masters.com.au/product/900028242/bosch-670w-100m…