Thank you @merej99, both for the up-vote and the interesting take on this matter. :c)

Ah yes. Establishments do tend to be less than subtle in their drinks prices That is a very good point.

I had not expected to hear that the overheads for two similarly thirsty but variously hungry persons would be that similar - but then again it is buffet. Again - thank you for weighing in. :cP

Oh and don't worry - I very much doubt that I'll stop enjoying buffets when I go in for such. :cP Good tip on separating food tabs from drinks tabs.

And its nice to see you! You've grown scarce. :c)