Here's an interesting document dated back in 1981.

Have a look at the prices of Video Games - just ridiculous ;

Defender $2000 - not so bad
Qix $2800

Frogger Cocktail $2350 - and we complaint about the prices of 48 in 1 cocktails ! How much would $2350 be worth today ?

NEW PINBALLS

Pharoah $2600
Jungle Lord $2600

Second hand Rolling Stones - $900. Lucky to get one for around $3000 - $3500 these days !

Enjoy !