No idea why people prefer the IPP 12.9” + MK instead of the MBA. The iPad combo is heavier than the MBA, has the same footprint as the MBA yet is ergonomically worse as the IPP easily tips over so placing it on your lap or anything other than a flat surface is a gamble, it has a worse aspect ratio for consuming content than the MBA, less versatile, and has almost half the battery life. So unless you’re one of the very rare people that use it as a tablet or draw the MBA is not only the better productivity device but it’s actually a better media consumption device as well all for being hundreds of dollars less especially if you get an Apple refurbished one.
I get people justifying their expensive IPP purchase but the 12.9” is nowhere near what the MBA is. Additionally, the screen quality on the IPP isn’t really that great as it suffers from poor response times and will undoubtedly have fingerprints on it 99% of the time.
No justifications needed. Personal preference - good enough.