It has the allure of being economic (cheap), easy to organise (you don't have to find anyone else to do it) and convenient ... the old fashioned hardware shop. Surrounded by shelves, racks ...

allowing for do-it-yourself repairs. Repair manuals for M4 Macs are available on Apple's website. Depending on the model, repair parts that can be ordered for M4 Macs include displays, logic ...