Hello all. Okay so in a local store there is an older model thermador 36 " all gas range. Model # PG364GLBS. The store will give me a pretty good discount on this older unit (4000). For a new similar thermador they are priced at 6500 but you get a free dishwasher, something I would be interested in bc we are redoing our whole kitchen. So my questions to anyone out there with knowledge of these ranges. Are the older models built better than the new ones? Are the new ones that much better that justify spending more money? Anyone opinions on what I should do would be appriciated.