Plywood (more commonly OSB) is a great material and there is nothing wrong with using it. But being cheap is still eventually the problem, sound insulation cos

Plywood (more commonly OSB) is a great material and there is nothing wrong with using it. But being cheap is still eventually the problem, sound insulation costs money without any immediately obvious benefits to buyers. It ain't even that expensive, but it is still enough money that someone is going to be like "Why is this house a bit more expensive? It looks the exact same! Of course I want the cheaper one!" And of course the problem is exasperated on other side too. If someone wants and is willing to pay for better quality, how much non-quality garbage is added on to the price? Customer is willing to spend 20% more on higher quality stuff? Well we can add 5% more quality and then pocket the other 15% while still maintaining that it is better than the alternative (and that isn't just on builders, that is all the building suppliers too). Oh they want better windows than that? We can bump up it up to 15% more quality, but then jump up to 45% more markup!