You missed off the other costs:
Cost of an estate car with towbar Vs a small car.
Cost of a house with a garden/garrage/shed for fettling and storage in an area near some trails, insted of a flat near work.
If you’re self employed, the cost of spending an hour being unproductive whilst riding a bike (I don’t know how people on £600 day rates relax on holliday, I find it bad enough knowing I’ve paid £100/day to be somewhere, let alone several times that in lost earnings!).
Just don’t think about it.
Job done.
+1, i could afford all my bikes at the time I bought them, why worry about what they’re worth in the meantime.
Sailing – several orders of magnitude more
Not nececeraly, I’ve got a competative boat in my fleet, cost £2.5k, and the running costs aren’t much higher than a bike, new sails are the biggest cost, arround £700 for mine which is comparable to a mid-high end set of wheels, and replaced on about the same timescale. Everything else is just wearing out stuff.
The biggest difference is in resale values, I could sell my boat tomorow for what I paid for it, and the only costs over the year would be maintenance, storage fees, club membership, insurance, race entries, etc (probabaly arround £600 total this year). So it’s a bigger capital expence than mountainbiking (although £1k would get a decent 2nd hand dinghy and a new sail just as it would a new bike), but overall I reckon it’s cheaper as the equipment has a much longer usefull life (and hence 2nd hand market).