Indeed, and yes, I know I'm very curmudgeonly
I'm never that bothered about what bus turns up as long as something arrives. It's just me but I don't tick off buses, with my Observer Book of Dennis Darts. When I do go for a day out, I will invariably record what I travel on but in truth, I don't then worry about it. In fact, the random factor is more "exciting" - catching the 54 and instead of some mature Dart or a ropey e200, sometimes you get the high octane adrenaline rush of an e300
Given the low frequency of services, tracking is more important in many ways on BoS.