I actually took a bus yesterday! Only because I'd forgotten about the engineering works and therefore couldn't take the train I'd counted on from Lawrence Hill. I suppose I should have taken the bustitute (would have been cheaper and nearer my destination) but I was tired and had blisters (had walked from Bath
it was a fun day
) and the normal bus arrived so hopped on it. Anyway, paid £2.50 in cash but I did notice the only other person to get on at my stop and most of those at the next few stops all used m-tix. One had some sort of card which she asked the driver to top up. Perhaps(?) this points to most bus users being regulars and therefore both knowing about and finding it worthwhile using the mobile system.
I was glad to not that the supposedly very Bristolian* habit of thanking the driver when you get off is still alive and well.
*But definitely observed elsewhere too.