A lot of Pro sales are to consumers brand new to the PS4 ecosystem honestly
By what measure are you basing this on?
This isn't to imply doubt on your part, just i really am interested in any substantiative data one way or other on this subject.
It's just such a unique difference this gen of home consoles than in the past.
Usually, after the first two years or so we see a home console userbase grow alongside with reduced prices and larger libraries. (Makes sense...the market is mostly driven by "casuals", they don't have the drive or need to pay premium price right away, they are willing to wait for a more opportunistic time)
People buying Pro's in the last 2 years...it wouldn't be that appealing to such people who already didn't find the ps4 appealing at $300-$400 those first 3 years (these would represent new customers to the ecosystem in its latter life cycle)
It seems to me the Pro would be most appealing to ps4 gamers looking to upgrade mid gen...exactly what the main priority of the upgrades were in the first place according to Sony...to
keep gamers in the ecosystem (rather than they move on to pc or a better Xbox when looking for an upgrade to gaming)
The appeal of the pro are for the very kind of gamer who jumped into the ps4 those first 2 years...core gamers who don't mind paying relatively premium prices in order to get the games they want, in the best way, as soon as possible.
Of course, there are always outliers. There will be a segment of consumers who...for whatever reason...just didn't care about ps4 games for the last 5 years and suddenly want to jump in now...but instead of paying the cheapest price possible (like they normally would and were waiting for) they decide to pay the highest priced product ...sure, these things can happen.
Just don't see this as representing the majority of ps4 pro buyers. Not even a significant fraction, tbh