Having had X rays back i the day they were great for about a month. then much, crud and water started to affect it and shift quality at the back was poor at best if i wasn't fanatical with cable cleaning and maintenance. (even in the summer the dust would gum up the cabling and make it vague)
And as teen i wasn't into stripping and cleaning every week and couldn't afford new cables every 6 weeks or so to keep it slick!