With the recent release of Red Dead Redemption 2, a lot of talk has been centered around the game not releasing on PC yet and the so called "double-dip" strategy that had previously been utilized for GTA V, so I did some research to figure out how effective it really was.
According to PlayTracker cross-platform owner data, 37.3% of GTA V sales were to people who had already owned the game on another platform. Those people make up 45% of all owners.
Assuming 95 million copies sold (which is in line with reports available online) at an average of 40$, GTA V grossed over 1.4 billion dollars from sales to people who already owned it on another platform.
This is several times more than other games with similarly delayed platform releases like Final Fantasy XV (9.1%), Monster Hunter: World (6.3%), Quantum Break (2.1%) and others - full list in the infographic.
Platform distribution is surprisingly even - implying console to console double-dipping was as prevalent as console to PC. There was even a decent amount of triple-dippers (7.6%), and data shows some quadruple and quintuple dips, though both of those are within the margin of error and therefore unreliable.
The calculated margin of error for this data is 2%, though it could be skewed due to PlayTracker users having a higher chance to own multiple platforms. The data also does not include Rockstar Social Club on PC, only Steam owners are included, but I believe it is fair to assume this data would not affect the ratio.