I volunteer at Thieneman's Nursery here in Louisville. This is my 9th year assisting them in variety selections, germination, spending time on the first two sale days generally the Friday/Saturday before Derby(first Saturday in May). We offered 150 Tomato varieties, most of which were heirloom. 40 varieties were Kentucky Heirlooms and there were a few Hybrids which had been requested by several gardeners. The price for any of those varieties was $1.49; I think it was a very good bargain. Many of the Kentucky varieties were very limited in number.
We have had faithful growers returning each year and that is my satisfaction of hearing about their success and suggesting someting new they might grow and enjoy!
Gary
Thieneman's Nursery
http://www.thienemans.com/CCorner/