Do you start your geraniums from cuttings, or buy them in pots? Are you pansies field dug, or started in the greenhouse? Do you raise cut flowers? If so, have you ever considered raising carnations in the greenhouse?,.and snapdragons/glads outdoors? If somebody wants a bedding plant and all you have are cascading petunias, do you sell them what you have and hope they don't know the difference? If somebody has a shady area and wants color, what are you going to suggest? (I saw 3 annuals on your list that would easily fit the bill)
OOPs, I didn't mean to sound like your HS teacher...
OOPs, I didn't mean to sound like your HS teacher...