Why are most price comparison sites horribly outdated?

Question

A quick Google search of "price comparison sites" surfaces articles like this: https://www.shopify.ca/blog/7068398-10-best-comparison-shopping-engines-to-increase-ecommerce-salesThe majority of these sites look like they haven't been updated a decade.

zuhayeer · Accepted Answer

Seems like a second order consequence of optimizing for SEO. Google takes time to index websites and as a page accrues search index strength, by the time it becomes a top result, the actual content is likely out of date or irrelevant. An adverse network effect perpetuating less relevant information rewarding being first / existing for the longest period of time.

paulpauper · Answer

Because they don't want you to actually compare, rather to click affiliate links or an ad.

throwawaysleep · Answer

Are they as relevant anymore in a world of dynamic data driven prices and tons of personalized promotions?Very few things have one price.

altdataseller · Answer

Because priced are hard to scrape from any retailer

Why are most price comparison sites horribly outdated?

A quick Google search of "price comparison sites" surfaces articles like this: https://www.shopify.ca/blog/7068398-10-best-comparison-shopping-engines-to-increase-ecommerce-sales
The majority of these sites look like they haven't been updated a decade.

Because they don't want you to actually compare, rather to click affiliate links or an ad.

Are they as relevant anymore in a world of dynamic data driven prices and tons of personalized promotions?
Very few things have one price.

Because priced are hard to scrape from any retailer