hi , people like that they are familiar with as you can't repair & electronic ign on the side of the road you have to pick up the bike then chase up the ign system & then fit it up , with points it depends if you have spares with you or not , but with mechanial points system you have to learn to look after it your self proper , otherwise go too & electronic ign system but the cost is 200 to 250 V's 1000 bucks from points to a Hi-4 crane for e.g. if you are a slow to med fast rider that works on his own bike well that would be ok , but for mantainance free & more precice timings then electronic is the best , most electronic systems are pretty good these days for 4 - 6 years at least , i can set points up buy hand completey & you can check it with a timing light & it will be spot on timing's i stopped checking points set ups with a timing light 20 years ago . if you are interrested i set up a points system back in the early 80's on my 1977 cast iron sporty , it was a pair of 90 deg ( rightangle ) points out of a late 70's jap bike like a GS750 , on 2 conta rotating backing plates , ground 1 cam lobe off the adv unit & made a single fire ign up back before you could buy them , i set the heads up with twin plugs & just ran a stock type high voltage andrews coil & a stock condensor , i did a lot of performance modifications to that girl it even had a 45m.m. weber side draft carb cut into half , set up as a single throat side draft like a S&S B carb but with fully adjustable internals etc as webers are venturies etc , there is a 15 min segment interview with that bike back in the ozbike movie vol 1 . i think they did about 3 or 4 movies i can't remember but i sure can remember that bike i rode her everywhere for about 10 years she had a lot of mods all sport enhancements like 11 1/2 " cast iron front discs with brembo calipers , air fork caps , fork brace , braced- up frame & swinging-arm , fournales rear shocks when they 1st came out , etc it was a very nice bike to me it was my 1st harley i owned from 1980 , i often wonder what ever happened the her if she is still around the last i heard i think it got a rake job & high bars ?