A bit late to the party (been away) but I have to agree with those who disagree about VCV being an entry to the real thing.
I tried it and hated it, and because of that I thought I hated Eurorack. Then I got my hands on a real rig and realised just how much fun it was.
In my case not because I don't like computers, I love them, but as soon as I found out I could have hundreds of modules only a few clicks away I uninstalled it. That overabundance of options and lack of focus is precisely what I was trying to get away from.