Its just not that simple...
I have an account with a book since 1997, they advertised and were backed in every gambling site possible. Now I am in jeopardy of losing a ton of money if they go under, as I assume they will. All it takes is a few sharps hitting weak or stale lines, bonus whores, bad management, some unforseen event ( I could name at least 3-4 books that advertised at a many sportsbook forums including this one at one point and were rated very high only to crumble), or being scalped to death. Many factors lead to books' demise these days. With the economy so ****** up, everyone is looking for the quick out, safe bets, low vigs, everyone is so desperate to cut corners nowadays it turns out worse. 10 years ago books were making so much money they didnt give a shit about hedgers, scalpers, sharps, cause most people were squares making them a ton of cash. Now every small hit hurts them because average joes are betting 50-100 bucks/game while sharps+line jumpers are busting their ass for dimes at a time. My balances at other books have never been so high that I have had to worry, but just went on an incredible, legit degenerate-run in the NBA and
march madness in the troubled book now. It is at a point I cant win no matter what, bet and win dont collect or lose and lose. I even did a few "laundering" bets (which is extremely dangerous but desperado time) where I took heavy dogs with the book going downhill and bet the favorite at a solid book to essentially "transfer" funds. I know risk is 2x worse if I lose, but managed to "win" 3 out of 4 games and "filter 3500 out to "safe" book with some vig lost of course. IMO you can make an educated, informed well decision into choosing a book, but nothing guarantees safety unless you physically go down to LV and plunk the cash down; thats the only 100% payout book. No matter what no one deserves to have money stolen from them.