It's important, I think to differentiate between true "rent a player" deadline deals and other types of deadline deals. In some of these cases, viewing the trade solely in terms of the year the deal was made undervalues the trade. In regards to the above, several of the players you listed provided value to the team acquiring him after the season in question. David Price is still a Tiger, providing value and will bring back a piece or two if they deal him. Hunter Pence is still a Giant (and has won 2 WS as a Giant, not 1.) It's also important to consider what the teams gave up, too, I think. Just to pick one example...Pence cost the Giants their number 2 rated (by BA) prospect, AA C Tommy Joseph (has yet to appear in a major league game), P Seth Rosin (yes, the one from MN), who has 6 big league innings to date, and OFer Nate Schierholz. Think the Giants regret giving up that haul? Prospects are great, we all love 'em. But the reality is, most of em don't end up worth a hill of beans. Berrios is a nice prospect, but the chances the Twins seriously regret losing him down the road are not that high. Gibson is a decent MLB pitcher, and he might actually get better...but he's 28, and the chances of that aren't great. A Tulo trade has a very good chance of filling one need, and filling it well, for the next several years. Not just 2015. That might not happen, but then again Buxton might never be a good, healthy big leaguer, either. I'd let either Gibson or Berrios form that basis of that trade 100 times out of 100.