A bit of a worn look around the case will definitely add that extra realism like on your datasette.
I remember programming a pumpkin sprite by creating a chart and working out all the bit/byte values to get the sprite dots in position. I then began figuring out how to move the sprite with a joystick but just as I got one axis working we sold the computer and got an Amiga. Unfortunately the manual for Amiga basic was so bad (and therefore hard) that it put me off programming till I left Uni in 98
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Si