Tubes do fit nicely in a jersey pocket though. I carry one in my saddle bag and another in a plastic bag in a jersey pocket.

One thing I've noticed is saddle bags look much bigger on the internet than in person. That Specialized Mini Wedgie looks tiny in person. It's also really narrow so I'm surprised all that stuff can fit in it. As for me, I use a large Timbuk2 saddle bag plus a small Sticky Pod bag in my jersey for my giant smartphone, money and misc crap.