What are the advantages and disadvantages of the electronic ignition system with distributor and without distributor?

The structure of electronic ignition system with distributor is simpler, which can be realized by adding an electronic igniter to the old ignition line, but the disadvantage is that there are some problems such as breakdown of distributor components commonly existing in the old ignition system, and the ignition time can not be as accurate as the latter.

The distributor-free electronic ignition system makes up all the defects of the former and achieves nearly perfect ignition accuracy, but the problem is that the accuracy of parts is very high and the manufacturing cost is higher than the former.