I still haven't set up an account at MatchBook, even though it's my #1 target to do so. I have been watching many live betting situations lately.
However, I understand what terps1313 mean about how it's baffling why there aren't that much +100 vs. +100 offers.
Though, I noticed nobody mentioned to terps1313 that the WINNING bid has that 2% commission (or whatever it is) to deal with.
So it is not like you and me decide we are on different sides so we help each other with +100 vs +100 bid/accept, avoiding juice. In reality, the winner only gets 98% winnings.
That's why the "best" price available at the same time can get as low but not much lower than 1 or 2 cent differential (i.e. +102 & -103).
P.S. Where I see great potential is the ability to nab both sides as the lines usually move somewhat (i.e. get something for -104 early then the other side becomes +106 or +108) then Matchbook, if I'm reading correctly, would release your initial wagers because they would recognize it as a positive scalp. Great for small bankrolls.
Hope this helps.
* CalvinTy