A 37 DA listing at $80 is the price of an experiment: if the article earns citations, you have found a channel; if not, you have lost one invoice.
There is a second job these placements do that is worth naming: they make a young or thin profile look normal. A domain that acquires 37-level links from a spread of ordinary publications, in drips, over months, looks like a business that has been around. A domain that acquires forty links from aggressive networks in a fortnight looks like a campaign, and it is the pattern rather than the individual link that gets noticed.
Ranked against the 2,000 listings we index, qpoenergy.com sits in the top 86% for audience and the top 29% for authority, at $2.19 per thousand monthly visits. Inside the DA 30-39 band (892 listings) that price ranks 109th for value, which is the comparison to use: nobody competes with the whole index, they compete with the sites a buyer would book instead.
Where qpoenergy.com is not a topical match for your market, buy it for that plausibility and for whatever brand exposure comes free, and put your exact-match anchors on the sites that genuinely cover your subject. That one discipline is the difference between a general guest post strengthening a profile and the same link making it look synthetic.
The index lists this property's editorial links as followed. Availability of a followed link changes with the site's monetisation decisions, so we confirm the tag on the live URL before counting delivery.