I've put out a lot of pvc and it will attract and hold fish. In the past it was just easier for me to go with pvc. But, now that I have good access to brush, that is all I put out.
You do need to sand pvc (or rough it up) in cooler weather to promote algae growth. In the hot summer, it will cover in a couple of days.
The bad thing about pvc is that it is harder to locate with a locator. The good thing is that it is harder to locate with your locator!!!! Especially small ones like pictured in this thread.
The ones I use to build were about 8' tall and maybe 5' wide. Also, look at the fish attractors the state puts out, they use a lot of pvc, at least down here in Texoma and Murray.