Leroux: Thanks! Also for confirming that KQ VI is indeed worth the money for the whole package on its own, that's what I was hoping. The SQ 4-6 package doesn't look too bad either.
Oh, most definitely it's worth it. I would be willing to call KQ6 Sierra's second-best game (with Gabriel Knight 1 being the best one). ...albeit with the caveat that I haven't played QFG at all. It's one of the most shining examples of that particular era of adventure games... lovely art and music (I'm listening to the soundtrack right now, actually), a cast of enjoyable and well-voiced characters, mostly logical puzzles (it IS Sierra, you can't get away from the moon logic and dead ends entirely...), etc.
The SQ games, meanwhile, I would call solidly good. They won't necessarily knock your socks off, but they will give you a nice warm tingly feeling in your feet. SQ5 is my particular favorite, but SQ4 and SQ6 also have a lot going for them.
Magnitus: However, rationalizing which of the games you'd consider buying at the offered price may be of genuine value to other users who are considering a potential purchase.
Well, I admit I really can't understand how people can feel like getting 3 games for $7 is a bad deal, even if they're old ones. The only reason I'm not buying them is because I already own the KQ, PQ, and SQ collections Sierra released a long while back, and they all cost me more per game than this deal does. *shrug*