Andrew,
You had a problem because you fitted one of the cheap units, had you bought an Aldon or Lumenition kit it would have been fine and you'd be singing the praises of electronic ignition I'm sure. Lots of posts on forums about poor quality condensers & rotor arms too, so regardless of whether you have electronic or conventional ignition fitting cheap inferior products will likely cause problems.
I had well over 10 years of faultless service from my Aldon Ignitor and would recommend them. I went a step further and fitted Megajolt a couple of years ago, timed off the crank, no distributor to worry about and if I want to adjust the timing I plug my laptop into the ECU.....
If you're happy with points etc. and it sorted your problem, that's great, personally I'd have sent the cheap unit back and got a refund then fitted something decent, but each to their own.
Darren