I have no regrets getting my carbine with the fake can.
The Scorpion carbine stock is designed to accommodate a can and when viewing a standard carbine at the NRA show from the front end, it looks out of place with all the void area around the barrel IMHO.
I just think the fake can looks better.
I do own an AAC M4-2000 Mod 08 for my AR, so it's not like I can't afford a suppressor.