If their were slaves in Delaware why or why not?

Why or Why Not.To Be or Not to Be. Houston we have a problem. Damn the torpedoes, full Speed Ahead.
Bad introduction and a worse answer, Economics, Yes, greed certainly, Economics 101 absolutely. If product "X" sells for a Pound Sterling at the London marketplace and its cost to produce can be improved by lowering labor cost by using slavery which was legal at the moment instead of indentured servitude, then the "Power of the Purse" prevailed. If you could multiply that profit margin via the Triangle Trade a shire or Manor in England was available on the market.
Slaves were cheap labor.