So what about a domain that has a good DA, the website itself and the article is very contextual to your money site, but the inner page has low or almost zero PA?
For example, let's say your money site is about hamburgers. There is another website about hamburgers and it has a good DA. You consider getting a backlink from this website but the owner says they cannot give you a backlink from the homepage, but that they can write an article related to hamburgers, and then put the backlink to your money site inside this article. The article would effectively be an inner page from this website with low PA (or start out at zero PA) because it is a new article and a new page. The entire website is about hamburgers, and the article is also about hamburgers so contextually, it would all be related to your money site which is also about hamburgers.
There are some websites out there with good DA that are very relevant to the theme (and therefore context) of my money site. I want to know if it's worthwhile to get a backlink from these sites, even if the backlink will be on an inner page with low PA. Is it worth it to get such a contextual backlink in this case, if the price is reasonable, even if the PA of the page would be very low or almost zero (but the DA of the domain is very good)?