I own a high-powered cross bow, and while I agree, I just think they are too awesome to be put below firearms.
I mean, I shot a wooden board about 20" long and 20" wide at 30 yards with a dull bolt, and I couldn't pull the bolt out! It doesn't make a loud bang, and it packs a punch. I was very impressed, I'm putting it in my movie for this very reason.
The reload time with the powerhouse ones is a bitch though.
