Which flowers to use?

the flowers you see in the vases submerged are purple orchids. If you do a google search for orchid sprays you can buy REAL orchids from anywhere to 1.35-2.15 per stem. I wouldn't use silk... they don't look the same. Orchid's are awesome because they have a great vase life.. atleast 8 days. If you made your centerpieces yourself the flowers would cost 2-7 dollars per table plus the cost of candles/vase. Silk flowers would be more expensive, look less luxe, and lets face it... they just aren't as nice! Think about using regular flowers!