Never left anything but have purchased stuff and then put it up. I bought a wind controller once from Sweetwater and couldn't for the life of me figure out how to play it so returned it and got a couple pieces of gear, a Yamaha mixer and a midi interface that I put on a shelf 2-3 years ago and have never used.
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PSR 740,PSR 3000, Mirage, tx7, mp32, Pro Tools 10,11 SONAR, Reaper, BIAB 2020 and a pile of Computer Music mags w/disks
College student was working on Doctoral, Education Now just doing courses to do courses