Are they good for a daily driver which will see a 75/100 shot every so often? When im not using spray, any risks of running these plugs on stock motor?

Do these plugs last or do they crap out alot?
Where are you guys buyin yours from?

 

I ran them in my 383/N20 '97 WS6 with no problems. I changed the plugs once a year. They always looked fine coming out, I just viewed it as routine maintenance.