I have to weigh in on this, because it quite frankly is killing me...
1) I honestly believe there are some people on this board who truly have no understanding of how good Kevin Love is...Not a shaft to those people, I just don't think they appreciate what he's done in Minnesota or haven't watched him play enough. He's not flawless, but he's easily a top-15 player in the NBA. Those guys just don't become available often. Moreover, the timing of his availability, while the Celtics have the assets to outbid practically every other team, can't be overlooked. It's the perfect storm.
2) Jared Sullinger MAY become an All-Star player...he MAY become a guy who never reaches his potential, because he can't lose weight and keep it off, during the season. I personally feel that he will be able to keep in shape, but that is purely speculation. I like Sully a great deal, but he's not Kevin Love. He might have had 2-3 weeks of Love production last season, but to go from there to averaging 26 & 12.5 is a gigantic jump. I take you back to the Big Al v. KG discussions...Yes, Al has grown into a 20 & 10 guy, but would you give back the years of KG for that? NOT saying Love is KG, but you get the point.
3) Future 1st rounders, for those who are so touchy with giving them away, were stockpiled for this very reason...If a star player became available, the Celtics would have the war chest ready to dump a "you can't refuse that" type of deal on the table. The Celtics will NOT use all of those picks in the next 3-4 years...If they do, we're all screwed as fans.
4) This could be the most important factor in all of this discussion...With Love, I believe your chances of resigning Rondo grow exponentially. If you don't trade for Love, those chances likely decrease exponentially. If you want Rondo on this team for the next 5-6 years, then acquiring Love is your best chance. If you don't want Rondo, but want Love, that's not likely to happen b/c Love will walk if Rondo does. If you don't want Rondo nor Love, well good luck. You are working towards a 6-year rebuild!
I'm all for Sully, the 6th pick, the Clippers 2015 pick and the worst of the Celtics/Nets 2016 pick...If the C's have to sweeten it, I could be open to Sully, the 6th pick, Boston's 1st round pick next year and the worst of the Celtics/Nets 2016 pick...There will also have to be filler involved from Boston's side.