Fly mount in tbc

I ask for a change in buying riding skills in tbc onyxia that we don't buy ground riding mount to get to fly mount .it doesn't make sence to pay for ground mount to get to fly and costs are a little just a little high for this patch if consider incomes of farming are not that high that you should pay like 600 and 800 and [5000] gold for 60 flying mount not even 150 .what is that 800 gold excatly does.between 100 ground mount and 60 flying .and at last 5000 is very high price for a cheap mount that u need of course for mining and herb. I ask for a discount in prices or better speed mount like 150 and 280.