Check the rims too, when you change the pads there is a chance your rims are very thin and at some point you need to replace it. Not cheap. Mechanical disk brakes are indeed quite good at cost-performance ratio, even if the hydraulic ones are nicer but significantly more expensive.
Its a cheap mavic rim I could probably get it second hand built already pretty cheap. Plenty of meat on the rim as there is a wear indicator to make it easy. I don’t think its very common to wear through a rim unless you do nothing but mountain descents for years and years.
