Wow....$450 to do 1 1/2 acres? I was thinking if someone asked me to do core aeration, what I would charge. I was thinking something like $60 per acre. It's easy work and not hard on equipment at all.
I don't need the floating feature as my ground has very little contour to it.
I am still amazed at the prices some of these companies ask for their core aerators. $2k and up, when a roto tiller, with its PTO shaft, gearbox, drive sprockets & chain, and umpteen curved, sharpened blades goes for half that.
FWIW, weight is no substitute for proper moisture when aerating. It rained this morning so I thought I would be able to do some aerating this evening. But even with about 300# on, I was only getting about 2" penetration.
I'll have to wait for more rain.
Slippy, please post what you find out. You never know when it will be of value to someone. A lot of people don't think about aeration until spring.