Heh heh, they were known for that.
Also, if I recall correctly the cassettes were only good for several loadings. Then the quality of the cassettes degraded to a point where you'd get loading errors.
And forget about graphics. All you got were a bunch of simple ASCII characters.
Speaking of ASCII characters, I still play Rogue ("You scored an excellent hit on the bat") once in a while, for nostalgia's sake. I wasted quite a few hours playing Rogue on a VAX 11/780 in college in 1982 - that's how I got started with all this gaming stuff!