What I remember the Herd navigator is only for lease and for every test you pay a additional price.
So if you have a good control then the price is ok, if you want to check a lot, cost go sky-high.
In the figure with the combine you in a certain why right, but you should count all cost, how fast does it pay of.
We have a bought for example a milking parlor with only take off and 1 year spare parts and extra vacuum engine for under 90k
The offer for the same parlor from other brand with a few small extra's on it, had cost us 200k more, that's a lot of money I need to earn back in 5 years.
Same for now, we are looking for heat device's, cost from 80-160 euro range, again 5 years it's 17-32 euro a cow and then count again cost a day later preg etc.