Depending on condition:
VF - $22
EF - $32
AU - $75
This is according to PCGS online price guide. Redbook values are very similar. AU and up is slightly different between the two.
It's a harder to find Morgan. Not exactly common but not super rare either.
To determine the condition check out this website:
http://www.jjcoingifts.com/Grading%20Circu...tes%20Coins.htm Not exactly the BEST way to grade but you can get a decent idea.