I would love to sit and talk about this, but
The area of you saying "you don't realise how good something is til it's gone" situation is not what happen to SAMP. It is old and outdated. People rather play new games with better visuals like graphics etc. SAMP is not like Runescape where the line that "how good something is til it's gone" would work when they closed old school and release the newer version of runescape. Tons of people play GTA V RP. It's just the development of the server that will bring people in and it will take time. Will it see tons of people coming in? Who knows, let's just wait for more development and see after that.