Originally Posted by AlanHK

I care. I recently got my first bike with hydraulic brakes, a used one I thought was a bargain, and have had so much hassle and expense getting the brakes working that I am pulling out my hair.
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For hydraulics I had to buy the absurdly expensive Shimano oil, tubes, syringes, and then give it multiple transfusions to replace the fluid. Then replace the expensive brake pads. Then spend hours polishing and tweaking the rotors to make them flat. Then get a new expensive lockring to secure the rotor. Then get a lockring tool to attach it it. Align the brakes. All the time being paranoid about getting a drop of oil on the pads and poisoning them.