ENG-44 vs PSC M4
 

I'm getting close to making a decision between these two mixers. I can get the ENG-44 for $475 new or then PSC M4 for $600-650 used. I understand the M4 which is identical to the Wendt X4 is better built but if its 7 years old then is it really going to outlast a new ENG-44 with a 1 yr warranty? Besides build quality what other difference is there between these mixers. M4 seems a little pricey considering its age but on the other hand it's a bargain compared to a new X4 at $1,800.

I have been anything but disappointed with PSC since getting my Promix 6. They've got great customer support, (met them in person.. nice people), and products are solid.