If you only use one set of odds then you are doing yourself a disservice. Basically, you are just throwing money away. I’ll give you a couple of examples and if that doesn’t convince you then I guess nothing will.
Spread Sports
If you are betting point spreads then not having extra options is costing you half points or worse, full points. Let’s say you like an underdog and your only option is +2.5, but half of the books have +3. You bet $110 to win $100 at +2.5 and I bet $110 to win $100 at +3. The game ends and our team lost by 3. I push so I get my $100 back, you lose and are down $110. How often does this happen? Depends on the sport, but in the NBA 932 games out of 23,193 have ended within a half point of the average point spread the past 19 years. That equates to about 1 in 20 of your bets. If you made 1.5 bets per day that’s two games per month you lost you should have pushed. Even if you just bet $100 per game, that’s $220 that should be in...