Apple 11″ MacBook Air (2015 Model) from $179.99 to $229.99.  These are refurbished models, but Apple products last!  My MacBook Air is from mid-2011 and still going strong, although I did have to replace the charger last year (cheap!).  This model is running OS 10.10 Yosemite and can be upgraded to 10.15 Catalina.  Apple supports their products for years longer than the other guys.