I added 3 more msi rx 470 the rack is now at 19 of them. I am getting 1 today it will be at 20 of them.
I will do some photos later today.
At what point do you decide to throw everything into an industrial warehouse?

yes, pix please - always looking forward to learn from Phil.
A lot of capital cost into warehouse solution... but ultimately that's the best if you want to go big and churn hard revenue.
My story started when my wife "threw me out" in favor of extra space at home.... so after 7 x rigs, me and a few buddies started on our mining project (GPU, BTC, X11, Scrypt) where only GPU farm is within our full control. The rest of the mining farm, BTC and Scrypt are hosted in Labrador.
.... but expect to cough up some dough on electricals, cabling, metal racks with wheels, big working desk, temperature controls/fans/digital gauge/remote relay if possible, CCTV, physical security, RAS/Radmin/Teamviewer servers and backup server, big-ass router 48 port and a few smaller routers, broadband, rig-resetter via remote relay - see Tyatanick's SRR, small fridge and microwave oven (trust me you gonna need this)..... the list goes on.... but when all is setup and almost lights out operation, it's all worth it. I only visit my warehouse max 3 times a week. Everything is remote control from home, with 3 x 27" screens on Win10 and my trusty iMac 27" as main desktop and backup for all the wallets.