This was my first thought as well. I think the use-case for this is when the customer has not or is unwilling to upgrade from a "working version". Having the

This was my first thought as well. I think the use-case for this is when the customer has not or is unwilling to upgrade from a "working version". Having the ability to take ownership of that "working version" for their business continuity reasons can be invaluable. Not sure how reliable this statistic[1] is, but a quick search yielded jQuery still has 11% of the market share. Interestingly, "websites added" > "websites dropped"!!! [1] https://www.slintel.com/tech/programming-framework/jquery-market-share https://www.slintel.com/tech/programming-framework/jquery-ma... PS: I have nothing but praise for jQuery and it's positive impact in the web world. However, given its age, seemed like a good example to illustrate the point.