Yup when I look at almost any bike in the store now with the wisdom of hindsight ,now matter how pricey , I can see right away that I will probably be swapping out the seats, grips and pedals and tires as soon as possible. Then there are the things that you do not notice at first glance ,such as chains and cassettes. My newest mountain Ebike came with a Sunrace cassette which lasted 1000 km. That is unacceptable to me. 3 years ago I bought an R+M Nevo base model. I thought that at that high price it would have great components all around, but I had to return it after 30 km on rocky trails where I found out the fork was not nearly as capable as the frame and motor. Now I look at ebikes knowing that the motor system and frame will be the most important decisions since those are about the only things I will never be replacing. Then I do the mental calculations to see how much more I will be spending in the very near future to upgrade the damn thing. (-:
In July I purchased a new Giant Fathom E+Pro
Here's what's been replaced and why.
Tires - this is not really fair, but I needed spiked for winter. I did buy some Johnny Watts on sale too, as an experiment for an allrounder tire for summer. We are normally riding in very dry conditions, and I do ride the paved paths with non MTB friends.
Handlebars- needed a slightly different geometry due to neck issues. 35mm rise. Done at purchase.
Grips - wanted to try out Ergon grips with wings. Got GP2s
Saddle - wasn't too unhappy with stock, but wanted to try to improve comfort for those 50km+ rides. Tried WTB Volt and Koda. Kept the Koda.
Seatpost - Added Suntour NCX for comfort and a PNW Coast dropper for utility. I use both, depending on type of riding. If pathways with friends, then NCX with seatpost rack and trunk bag. If trails and single track, then dropper. At present, Giant stock saddle is on NCX for a quick change.
Pedals - added some Oneup composites at purchase. I would characterise that as a need, not a want.
6 component changes.
I would say 3 were needs, and 3 were wants.
As this post was about pedals, in the context of a new e-Mtb, new pedals were definitely a need.