That's the joy of a healthy reef tank - There is always room for more. I started in the retail side of the hobby back in '85 and became one of the top salespeople in the largest fish store in So Cal, by upselling people to reef tanks rather than fish tanks.
Average size aquarium sold back then was about 40g. And in a 40g fish you have a set number of fish you can buy before you are full.
With a 40g reef, I had a revolving door of customers that came in as often as 3x a week to buy something new. And this was before there was ever such a thing as a frag. Another rock of mushrooms, another leather, another caluerpa rock, there is always space for more.
Having started a bare 750g reef in Sept I can say that it will be a long time before there is enough. There is enough now that the burn to have to buy more has subsided slightly and I can start being more selective as to what I choose. But that's after buying about 350 pieces of coral in 4-5 months.
And we still have (2) 180g frag tanks to stock. We stock these with corals that we give away (my wife and I). So there isn't such a desire to buy to fill these tanks. But we rescue alot of unhappy and unhealthy coral and turn them around, grow them and share them.
There will never be enough
Dave B