With a game like this now (Say, the excellent Thimbleweed Park - you played it, right?), if you get truly, epically stuck, there's a walk-through no more than a few clicks away. And you'll probably admit defeat and go there after a few hours.
When I picked DoTT up (a few seconds after release ;) ), no such thing. You were in it alone. Maybe there was a magazine write in for hints, and if you were lucky you knew a guy on a BBS, but other than that, you were on your own. That made the puzzles so much sweeter when you got them.