I guess they have to claw back some money the lose by giving the bubbly away :D

Seriously, though, in UK bottled water in restaurants is always a ridiculous price - I always ask for tap water (unfortunately can't do that here - too yuk).

However, bottled water in Doha is so cheap it's a bit of a rip off to overcharge for it in restaurants. Be thankful you weren't paying for the vino! lol