I have never tried little big planet, it looks fun to me but I'm not really sure if it is. I have tried physics sandboxes where you build stuff and so on but I get bored after an hour max. Is it the same thing with this game? It seems interesting, I guess I will have to look up some gameplay on youtube.
The problem with LBP is that 99.9% of people don't know shit about making good playable levels
Nobody is going to create SMG quality platformer,or any other quality game,forget about that
If it was easy like that,nobody would hire professional dev teams
Basically you always have three groups
1.Can't make anything useful or good looking
2.Can make good looking stuff,but gameplay is total shit
3.Can make good and playable levels,but why give them for free,why not make your own game or something
So basically people that only want to play totally depend on group 3(0.1%)
When LBP was announced,released,some(lol) people where hyping is as a system seller,something that will spawn infinite number of clones.
And now 2 years later we have nothing and that tells a lot.
No publisher or dev is interested in making this type of game,its not hard to figure out why.
As others have said,if have zero interest in creating,this is not your game.