It's not a case of packing your midfield, it is making best use of the players available. A 3 in the middle provides plenty of options both going forward and in defence, not to mention the ability to play between the lines. There is a reason the best sides in the world play it.
Not for me, especially when the rest of the club is set up to play passing/possession based football in a 4-5-1;4-3-3 style. Not to mention the strongest part of the 1st team squad is central midfield.