What Are They Worth?

So, I periodically check around for "baseball cards" on Craigslist. Not much comes up but a couple of sets did pop up this week that got my interest and the seller mostly seems to know what he's advertising.

1. A 1977 Topps Baseball Complete Set (hand collated)
 - billed as "featuring Dale Murphy, Bruce Sutter + Andre Dawson's rookie"

2. A 1986 Fleer Update Baseball Set
- billed as "Barry Bonds Rookie card!!! Will Clark, Jose Canseco, John Kruk and Ruben Sierra Rookie cards."

3. A 1981 Kellogg's 3-D Baseball Super Stars set. "This is a classic set. Has tons of HOF players: Jackson, Palmer, Foster, Ryan, Schmidt, Brett, Rice, Murray, Perez, Winfield, Carew, Henderson, Morgan, Carlton, Molitor, Yastrzemski, Yount, Rose and more. You don't see sets like these too often!"

Hmmm, well, OK. My question to the more knowledgeable collector out there is what would you pay for such sets assuming they are as advertised (and in excellent condition).

(Yes, I know I could do the research myself but what fun is that?)