Maybe its me , but NO WAY would I expect CO or any other carrier to compensate me in any way if I was Downgraded due to equipment change, thats if I hadnt purchased a FC or BF seat to begin with. Had I purchased with $$ or miles a FC/BF seat then I would expect compenstation to the degree that I Overpaid, Only.

The OP purchased a Coach tkt and in the end got Coach. OK the OP might have been able to buy a cheaper a less expensive tkt the day they did, but unless they have a printout of such, I would say no dice. had the OP been Downgraded on the same equipment but due to an Oversold problem or cause CO was able to sell a FC tkt for alot more then the OP paid then Compensation would be in order if proven and if it was me Id probably Never fly CO again, since I would have to expect it to keep reoccuring when ever it suited CO.