$150 million is too steep - reportedly Laurie dropped to $140 million and Checketts thinks it's still too steep.
The Blues have several issues facing them, most notably their arrangements with the City of St. Louis. The city has an entertainment tax on tickets of 12.8%, the highest of any professional sports team in North America. The baseball Cardinals got some relief from this when they struck a deal to build the new stadium. The football Rams have it in their lease where part of this tax money goes to improvements on the Edward Jones Dome, so the Rams aren't responsible for maintenance. From what I gather, the Blues don't own the Savvis Center (the city technically owns it) but are responsible for the debt service on the bonds and all maintenance to the arena. They do get some part (but I don't think all) of the revenues generated inside the arena (I'm checking on all of this right now).
Bill Laurie's paid consultants decided the team would be more attractive to a potential buyer if the team had no long-term contracts (or the threat of long-term contracts) associated with the team. That's why Chris Pronger was dealt to Edmonton - not because Larry Pleau had a whim, because Bill Laurie and Mark Sauer directed him to do it. But as pointed out, this just further gutted the team of value - but Laurie didn't care about the long-term value. He's more concerned with spending as little money as possible between now and the time the team is sold. That's why Pleau didn't exercise a buy-out of Weight and Tkachuk, Laurie figured the team would be sold by February and thus it would be cheaper to pay both to stay than pay 2/3rds to get rid of them.
No matter what, Laurie is going to go down as yet another inept Blues owner who left this team in worse shape than it was when he bought it - and in the past, that's never been a good sign for Blues fans.