I disagree strongly with this.
This mindset is exactly the aim that Pioneer marketing has been trying to achieve.
It’s why so many new djs are just Pioneer product specialists , that actually have very poor basic djing skills.
If you concentrate and master the four classic fundamentals of selection, beatmatching, gain staging and phrasing then you can walk up to any dj gear in the world and do your thing.
Cdjs are very simple machines that take a couple of hours to master if you have the fundamental skills down.
Having a Pioneer club setup at home because they are “industry standard” and “necessary to be club ready” are just the effect of aspirational Pioneer marketing.
Of course Pioneer wants people to think they have to buy $4000 of club gear for use at home.
It’s not true or necessary though.