I started when there were only rear sealing faucets available in the mass market (there were some fancy european ones, but they had different shanks, were difficult to get, and expensive...).
Once ventmatic came out with their faucet, I bought those. Then there was drama with that company, so when I needed to add faucets, I went with Perlick 425ss, which were a near clone to the ventmatic design with the shuttle and removable spouts (this is part of the drama, they infringed on the IP). That got me to 6 faucets, but when I expanded up to 14, neither the ventmatic or the 425ss faucets were still available, so then I got some 525ss, and then some 630ss faucets to get me up to 14 faucets.
Then I decided to upgrade my tubing with bev seal ultra 235, and with the push to connect fittings I had already invested in, I needed 3/8" OD tubing, which meant I needed the 1/4" ID. This meant I needed to either put 40-50 ft of tubing for each line, or change to flow control faucets. I decided to change out my faucets to the Perlick 650ss flow control faucets, so I have 14 of those on my walk-in with bev seal ultra tubing and John Guest acetal fittings. I have another two on direct draw keg taps with a stainless ball lock and stainless pin lock quick disconnect along with the chi-company adapter specifically designed for use with the 650ss faucets.
I also made my own stainless hex tap handles for fun - I bought a 12 ft bar, cut it into 3 inch pieces, drilled, and tapped the threads.
here are a few pictures: