Tiger improves accessibility; it just costs $350 extra

Tiger Airways has made a move to better accommodate passengers with mobility limitations, by implementing use of a special mobility chair. TODAYonline explains: "The equipment enables a passenger to be secured in a special chair, which can then be carried onto the aircraft by the ground staff." And this service can be yours in Singapore for a mere additional fee of $350!
Outrageous. Company representatives acknowledge that the new equipment is in response to publicity this week about two separate incidents of refusing to board passengers who use wheelchairs. But quite obviously they still don't get it.
Let me focus the issue for Tiger; charging disabled people extra to get on your planes is discrimination too!