exactly - I started about 6 years ago (...) 1800hp+ of rack space

300hp/year. With my much more limited experience, that still sounds about right

not convinced about 1u though - it saves 3.5" in vertical height, but can only hold at most a 3rd of the functionality and in terms of build cost (most of my cases are DIY) costs the same 3u...
-- JimHowell1970

DIY is a great idea. I built my own studio racks on top of a table, so not entirely new to it. Those racks were simpler, but it was a good experience. As for the 1U - Intellijel has some great modules, like the Quadratt. I'll likely buy another, they're so handy. Add some multis and I have decent functionality without losing valuable 3U space. On top of that, it's a superhighway for cable routing that's not in the way of the knobs of the "real" modules. It's why I modded my 7U to get the 1U in the middle. For my 7U, it works pretty well. For 1800 U, well, I'll tell you in 5,5 years!

Modular playlist on SoundCloud