I saw it on my way into town, somebody put out a casio WK-3000 piano out on the curb for free, with the stand power cord and even manual. The craziest part is its fully functional. Not a darn thing wrong with it 'cept some dust. Now I have to learn piano.
Having played both electric keyboards with weighted keys and analog pianos, the feel of the keys are most definitely not the same.
Electric weighted keyboards all have nearly identical actions. Analog keyboards tend to be very individualistic. Electrics are smooth through their stroke, exhibiting an even effort. The initial press of the key is less effort. There is less inertia to over come in the system. You are just closing a switch with a weighted feel.
With an analog key, you need to not only over come the inertia of the key but also the hammer to get it to start moving, but you also have the friction of the pivot points to overcome. So it requires more effort to start moving before all the parts “break free” and then move more like your weighted electric keys.
It depends how hard the digital piano is trying to mimic an acoustic one. Some of them have “graded hammer action” where the keys have something approximating the inertia and friction you mention, as well as varying from heavier for the low notes to lighter for the high ones.