Having done this I'll weigh in in favor of the older Tek gear. When I had
$1000 in my pocket "destined" for an oscilloscope I surveyed the market and
nearly bough a Kiksui(sp?) scope. It was Korean made and had more bells and
whistles than the Teks in the same price range. I ended up buying a used
465B that still had a valid calibration stamp. After about a month the
horizontal amplifier went out on one of the channels which I had repaired
for about $150. Since then it has worked flawlessly. Later, after my means
had expanded somewhat I went back to the same dealer that was hot on the
Kik scopes and asked him where they had gone, he simply said "away." They
kept coming back (returns) and so he stopped selling them.
So consider taking the 465B to a repair shop and getting a quote. If it is
under $500 it would be a better investment than a "lesser" but newer scope.
--Chuck