I think I posted on another thread that I have started a small patch of ramps on my property. I planted the ramps themselves - not seeds - in some woods that resemble the woods where ramps do grow wild. This is a mixed hardwood, a little damp. I don't think they'd do well in a proper garden because it looks to me that they need the shade and cover of a woodsy environment. At any rate, I planted the ramps in several patches scattered throughout the woods about 3 years ago. They have come back every season but are not spreading enough for me to even remotely consider harvesting any. This is a long-term project - my grandchildren may be able to dig them but I definitely won't.
Unfortunately, it's not really a viable crop. Ramps are, for the most part, wild, and are not usually cultivated for their seed, but I think there may be some purveyors out there. I would image it would be awfully expensive for seeds or even more so for the bulbs...and even that would take some very specific conditions to properly grow.
Are you on the East coast?