At $1800, you could have a Vision, NordicTrack, Sole, or Smooth. If you can get a serious discount on it, the T4 model starts to make quite a bit of sense. It is well constructed and has good parts but not enough to pay $2000.
Not a bad tread but if you are in love with this, spend the extra for the T6. Typically the T6 has a street price for less than $2000, and with the market we are in this year we figure you can whittle out a bigger discount from the retailer.