As an adult viewer without kids, I don't get much from Son of, but, as a kid, I liked it a lot just because it gave me something to connect to. I'm sure when I have kids, if they get into Godzilla, or just being a parent, I'll find a new connection from the big guy's side.
I've been considering slimming down my Godzilla collection, as I collected a figure of just about every suit and some were just for that reason, but as I look at them trying to figure which I might not care about ever seeing again, I can't bring myself to part with any, more than any property, I love all my Godzillas, it's hard to pick ones to let go, other than ugly variants.