Why wasn't this Zenith roundie repairable?

[sampson159]

i remember those tired old lines."well,your crt is weak and in my honest opinion,this set is not worth fixing."or the southend columbus line,"if your set was a horse,i would have to shoot it!".very common when you didnt want to repair something.i could see not fixing a roundie if the crt was weak.by the 80s they were getting fairly scarce and these sets werent in vogue like now.we repaired everything that could be repaired.the only issue was good used crts for roundies.they were available through rebuilders up to the the late 80s but demand was low.many techs by that time just wanted to snap in a module or tripler and collect his money.gravy work back then.we always got the tough dogs.they were at other shops and turned down.filter caps were replaced in home.simple repairs and quick.dont understand why a tech would turn down such a simple fix?