Value varies per game, yet overall the entertainment value of games is very high compared to the price.
A $70 games costs as much as a for example The Expanse S1 to S3, yet that's well after release.
A single season, for example S1 ST: Picard costs $35 on blu-ray
Some games can provide hundreds of hours of entertainment and are supported for years, yet even a 12 hour campaign provides more 'value' than a single season of a tv series.