Ah, luxury. We had to make do with the humbler ZX80. It took half an hour to load any small game from cassette and four times out of five it would conk out in the last minutes of loading. Bad times. Even by today's standards the ZX81 is a pretty stylish piece of kit.
We threw out the ZX80 a couple of years ago with all the paraphernalia we bought for it. So stupid.