I went looking for Pansies today. Home Depot had single plants in individual 2.5" pots for $3. I didn't like the price, so I went next door to Lowe's. They had the same pots, but I found 12-cel packs for $10! Much much better... I bought 5 packs.
BTW, 2 of the flowers on the plants in the cels in the purple color pack were literally black! I've never seen that before. Can you harvest pansy seeds for reseeding? I've had a few volunteers before, but that wasn't anything I did deliberately.