"Why aren't these old hybrids been stabilized by now.. is that because the seed sellers want to be able to sell them for better price?"
Who knows for sure, docman. Some will say it's for continued/repeat purchases/sales, which makes sense in a society that creates items with "planned obsolescence". Not only do the companies gain repeat sales but the hybrids seem to always cost more because they're touted as being better than non-hybrids in some way or another.
Then again, also keep in mind the early hybrids were created using only 2 parents. Modern-day hybrids can easily come from 8 and up to 16 different parents. Saving the seeds from those will certainly offer a multitude of recessive genes OR completely new never-before-seen traits. Most home gardeners/seed savers may not want to waste a whole growing season just to see what they end up with and commercial growers have no interest in saving seed.
"Which Hybrid seed have you dehybridized? "
My most favorite in the past 12 years is Supersonic. I don't think you could grow it in your house though as it is a stately plant and would be best suited for an airy environment and natural sunlight for best flavors.
Hope this helps,
Shoe (pummeled with loads of rain and now has tornado warnings here. Yikes)
