I have a 13" 120gb 4gb 2012 MBA that I recently got from a family member and like it so much I switched from Windows after 25 years. However, I'm running out of space and will need to upgrade the hd to 240gb for about $200. I've been using Lightroom for light photo editing/organizing as well as Chrome and it's been fine. I would also like to use it for Illustrator and Fusion 360 on occasion (not heavily) and have a feeling 4gb won't be adequate. Should I upgrade the hd only and use my Windows desktop for Illustrator/Fusion 360 stuff or should I get a 2017 MBA (256gb hd, 8gb ram) out of state/no tax for $1100?