I'm with both camps. Those that are disappointed by the Stage Builder are disappointed with good reason, but they're whining way too loudly. For example...
what do you mean it's a bonus? was it done Pro bono? no. part of my $50 paid for that stage builder, therefore i'm entitled to be disappointed by that facet of the game.
You know quite well what he meant. Brawl still has its multiplayer mode, all old single player modes, and Adventure Mode was expanded a LOT more than it was in Melee. Adventure Mode in itself was expanded greatly, and has character customizability. Not to mention WiFi capabilities and a much larger/varied character roster. If they hadn't told us it was going to be in, Brawl could've shipped without a Stage Builder and nobody'd have give a ****. And while the Builder is restricted, it still allows us to do far more than having no Stage Builder would (especially when it comes to measuring things such as fall speed, jump height, tether ranges, etc.)
Anyways, my main gripe with the Stage Builder is that it's missing a lot of parts that are pretty ****ed obvious should've been in:
1) Go-through (from below) platforms with grabbable edges (to create stages like Halberd)
2) Solid (from below) platforms with grabbable edges (like the ones in Jungle Japes.)
3) Inverted triangular pieces (like the ones we have, but flat side up.) If not this, then the ability to invert pieces vertically as well as horizontally.
4) Variants of all the triangular pieces, with grabbable edge.
5) Concave (half-pipe) and convex
smooth slope pieces.
6) "Fire" blocks (like the ones in Melee's mini-games and Break the Targets) and spike blocks
None of those would've been particularly difficult to implement, and would've made the Stage Builder faaaaaar more versatile than it currently is.
EDIT: Also, the ability to make walk-off stages. Having a fixed margin around the stage is dumb.