Not sure if I mentioned this earlier in this thread but the Tobias Harris 5 yr/$180 mil deal is pretty bad too. Philly better hope they win a title in the next 2 years, because they're going to be in cap jail after that.
Yea, I think that could end up being kind of painful. The reason I am a little less down on Harris (and perhaps to a lesser extent, Rozier) is that there is a chance they are just staying at the same level over the course of their contracts. Harris right now is a tiny bit below all-star quality, but really really elite role player 3rd best player on a title team. I think he will remain that over the course of his contract.
Horford has a significant chance of just being a very limited role player that is good for 20 minutes a game in the third year of this contract. Horford will be 35 then, and there really have not been very many centers that have been key players at that age. Tim Duncan was one of the are exceptions to this still being extremely effective at that age (but he obviously started at a much higher peak as an MVP). If you look at some of the players in this age range like Noah (34) Howard (34), Gasol (34) they are all all-stars that have completely fallen off a cliff at this age. Pau Gasol fell off a cliff at age 35 too. I have seen some argue that Horford should age well cause his game does not rely on athleticism, but Noah and both the Gasols were guys that were viewed in the same way, high-iq average athleticism players. Finally, in Horford's three years in Boston he has missed 14, 10 and 14 games. It would not be surprising at all to see that number increase as he plays his age 33, 34 and 35 and 36 age seasons.