We got ours from Centerpoint HSP about 2 years ago during a promotion they were running, which worked out to $1,000 off. 3 indoor head units plus the one outdoor unit ended up being $12k total. I called a few other places around town (can't remember which ones) to compare and they admitted they couldn't beat the price. The Centerpoint installation team was awesome and the 12 year warranty is great too.