Best Capacitors

Capacitor tolerances are usually way less precise than resistor tolerances and that's OK because generally we are using them to get some decoupling done or to keep a crystal oscillating. I am not sure you can get 1% except in polystyrene and other exotic construction caps which are limited to pretty small values and expensive. 10% is good unless the circuit calls for a precision part which I have just not seen in digital electronics so far. Probably there are more applications for it on the analog side.