I guess my 23yo WF is reaching EOL so I've been getting some quotes for replacement. Since it's replacing an existing system it's a simple drop in with possibly some minor duct work. The electrical circuits and water loop (open loop) are all in place so why are the quotes I'm getting so high? So far I'm getting quotes in the $15-17K to replace my existing system with a 4 ton unit. Heck I could buy a nice car for that sort of money. Hooking up a couple of water lines, electrical circuits and replacing ductwork is not exactly rocket science. I've done this sort of work many many times. Would it be worth trying to purchase a unit from a distributor and install it myself? I was hoping to be able to cut down the cost significantly by avoiding dealer markup and install costs.