https://www.cnet.com/news/apple-macbook-air-2018-retina-display-touchid-1199-available-nov-7/

With its processor that's three generations behind and thick bezels around its low-res 1,440x900-pixel display, the 13-inch MacBook Air was last updated 2017 and hasn't really changed physically since the first model in 2008. It is, however, the cheapest Apple laptop starting at $999 and frequently found for less. 

The 13-inch Air was somewhat supplanted by the thinner, lighter 12-inch MacBook model, despite a starting price around $1,299. The new Air, however, will start at just $100 less at $1,199 for the base model. Though that's now the cheapest Apple laptop with a Retina display, it might be a bit too high for cash-strapped students and schools.