Yes you are (almost) right - OEM Home + Business is around $199 in Australia and Home + Student $119 (from Dell) - though I bought H+S for 60 with a new computer in UK last year. You don't have to be a student to buy Home + Student.

The whole point with the QAT is that you can minimise the Ribbon, meaning that it takes up about 35 pixels rather than 140.