DR Power Core Aerator and replacement tines

[pigdoc]

Considering getting a 60" core aerator from DR Power and just checking to see if anyone has experience with this unit? Cost is $700 delivered to depot near me. It appears to be a clone of the Field Tuff areator (looks same, exact same weight). Also, replacement tines cost $16/each. Is this a normal cost? Can I get replacement tines from another source? I've got 2+ acres to aerate on a regular basis and don't want to spend $2k or more on LandPride or Frontier. Thanks in advance.

 

[TMGT]

I couldn't find the dimensions but looks similar to most units I've seen, if they are the same as mine you can get them at agri supply for $4 a tine till I believe, everything attachments also carries them.