I agree that’s kind of a big chunk of maintenance to do all at once. Some must have been deferred for a while? But a big chunk of standard stuff hits around 80-120k, and if you can make it over the hump you should be ok for a while. Usually all the hoses, belts, and the radiator go around this time as well. I probably did spend about 5k between years 9 to 12 on mine, but almost nothing years 5-8 so I called it money well spent.
Regardless I’m glad you’re enjoying the car. I sold my 2002 330i in 2013 for 5.5k. The buyer told me he resold it recently for the same 5.5k so as far as value they’ve levelled off pretty well for well-maintained examples. CarMax had offered me 2k and I laughed all the way out the door!