Why look at the 2013 sales? Most console players interested in the GTA series already bought their PS3s and Xbox360s in 2008 or the following years for GTA 4, so they already had one for the GTA 5 launch. Nobody was expecting a hardware boost for Xbox 360 or PS3 in September 2013 when the announced nextgen consoles were only two months away.

And many gamers waited for the inevitable nextgen ports (PS4 + Xbox One + PC) of GTA 5... or they double dipped.

Why look at the 2013 sales? Most console players interested in the GTA series already bought their PS3s and Xbox360s in 2008 or the following years for GTA 4, so they already had one for the GTA 5 launch. Nobody was expecting a hardware boost for Xbox 360 or PS3 in September 2013 when the announced nextgen consoles were only two months away.

And many gamers waited for the inevitable nextgen ports (PS4 + Xbox One + PC) of GTA 5... or they double dipped.

Sony always saw Nintendo as competition, conferences always had slides were they were outselling Nintendo consoles with a big margin but they stopped doing it during the PS3 era when it was clear Nintendo Wii was outperforming the PS3 in sales.  Example

Oh good. Someone else disagreeing with the "PlayStation is getting crushed" narrative that I can't believe even came up here in this thread. Yeah, I'm sure they will feel the crushing when they are selling millions of consoles during the GTA6 launch because it's a console exclusive, and XBS consoles have fallen off a cliff so will be no threat to Sony during GTA6 launch period. 

They compete in the same sense two different games compete with each other, if your money is limited you have make choices

However I see them as complementary consoles as they (mostly) don't run the same group of games. Sony and Nintendo sales curve and evolution have very small correlation

In current market state PC is more of a competition to Sony than Nintendo

The relative failure of the Game Cube was the trigger for Nintendo to adopt Blue Ocean Strategy.
By which Nintendo itself explicitly sought to avoid competition.
Sony agreeing to Nintendo´s own representation is hardly some outlier.
Using words like ¨always¨ which ignores Nintendo´s own shift in strategy only obscures the reality here.
Nintendo´s non-competitive strategy was reported to stockholders and as such would be grounds for lawsuit if not true.

*Looks at the homepage of vgchartz* Yep, they still compete with each other.

Your arguments againt are not very convincing. The music analogy doesn't work. If you were talking about 2 specific games that have different audiences, then I could get behind it. It doesn't work well because both systems offer a range of overlapping games and genres.

Overlapping users doesn't mean there isn't competition. If a game comes out on the Switch I want to play that means I'm spending time and/or money on it, and not the ps5.

The form factor of these systems is irrelevant.

GTA IV was very interesting on VGChartz because January-March was all about how GTA IV will sell a ton in April and boost X360/PS3 sales and hurt the Wii, A ton of discussions but reality was =>

March the month before GTAIV release 

NPD:

• Wii - 721K
• Xbox 360 - 262K
• PlayStation 3 - 257K

April  the month with GTA IV

• Wii 714.2K
• Xbox 360 188.0K
• PlayStation 3 187.1K

Neogaf was also in shock

https://www.neogaf.com/threads/official-april-2008-npd-thread-of-massive-disappointment-if-youre-not-nintendo.296026/

But the PC never outsells consoles.