How about this. I'm not sure if it'll improve your mood, but it's all true.
I looked up Routemaster on Wikipedia, to confirm the exact time period, and jog my memory.
I vaguely remember the RM coming out. At the time I was doing the "bus-spotting" game. I'd already being collecting RT numbers and, as a treat, RTL and RTW numbers, for some time. I'm not sure if I ever finished off collecting all the early RM numbers; almost certainly not. In fact, I think they put me off the whole process. They were taking the RT buses out of service faster than I could finish off collecting them!
I do recall getting "Red Rover" tickets most weekends, so I could tour all around London to the bus garages. I also tried my hand at collecting the single decker green buses, but that was too expensive, although I did a some touring on the fringes of London.
Hm. Recently I've been answering questions like "do you collect things" by say "no". Stupid. I've always collected things! From the same childhood period as the bus-spotting, I guess:
*) Huge Bayko set.
*) Another building kit - I can't recall what it was called, but it had "real" bricks (tiny plain rectangular things - an inch long? - great for choking on) that you stuck together with a pasty glue stuff (a bit like printer ink cartridges... you kept having to buy more glue, and it wasn't cheap!). You took your buildings apart by soaking the whole thing in water. Sometimes the bricks broke.
*) Huge Meccano set.
*) Plastic soldiers. I particularly liked it when they came out with packets that contained dozens of them. I must have had near a thousand, all told. You were supposed to paint them. I never did (except sometimes, just for the wounds).
*) Books. Still do. Still have. Mostly SF. About 1,000 novels and a few hundred magazines. I think the earliest are some "Galaxy" magazines.
I'm sure I collected many other things - in fads.
One thing I know I've always enjoyed collecting, and I never intend to stop collecting: knowledge. Hopefully a bit of wisdom too.