To a certain extent that is what I am saying, but it is not a blanket statement. In the first round, I wouldn't draft a 4th liner. In the third round, the chances of a guy reaching the NHL at all, let alone regularly, let alone above the fourth line, is very minimal. If there is player A who has a shot to be a 2nd-3rd liner, but the scouts or GM or whomever feel that that is a long shot, and player B has a much better shot at becoming a solid 4th liner, then yes I would take the 4th liner. Again, if this was the first round no, I wouldn't take the "safer" 4th line pick. This isn't really a generalized "I'd do this in all situations" scenario, it is very much fact sensitive.
And also, that analogy is wholly off-point. (keeping in the Wal-Mart line) It would be more like saying I'm going to pick something up at Wal-Mart because there's a better chance they will have the item need, even if may not be as high quality as going to the farmer's market. If you go to the farmer's market and get what you need, it's probably higher quality, but they may not have the item you need because the selection is smaller or the item still may not taste as good as the one at Wal-Mart if they do have it.
Not sure I'd agree with that. That doesn't really make a lot of sense. You don't think there are players that are drafted with the intent of being on the 4th line? Only players that were supposed to be more are good fourth liners? What about guys that weren't drafted at all that play on the fourth line (or higher for that matter)?