But don't let that put your off experimenting ;-)
I'm pretty sure I attacked starting modular from an "unpopular" angle, that has not stopped me having a load of fun in the process.
Now I find myself at the point where my Modular Rack is more about swapping one module out for another, sure I have a wish list of modules, but its relatively cash neutral at the moment as I sell things I find I don't need.
VCV confused the hell out of me to be honest, I found the hands on experimentation of having real modules in front of me to be more educational and fun! Its got to be fun!
It helps to have an idea what you want your rack to be from the start but these things evolve as you go, just start simple and small, I got a lot of mileage out of 10-12 (relatively cheap) modules in a Tiptop Happy Ending Kit case.
Enjoy your spare HP, don't rush to fill every last space, this is not like filling sticker books. Resist the urge to 'complete' your rack, its never complete so just relax.