specs has about 300 argentine wines listed with prices. they are a long way from dallas.
majestic in dallas has 341 listed, no prices. they have at least one very high end store in highland park. do not recall ever seeing $200-1000 bottles on racks before.
goodygoody.com in dallas has over 200 listed with prices. they seem to be about 20% higher than specs.
texas is unique in that at least in dallas, they do not have a three tier system. many of the retail stores have a wholesale division.
you can go on line and check prices yourself. i buy little in dallas. i usually check one 50 lb luggage, which is 11 bottles of wine.