1) Are they worth their price in your opinion? Yes.
2) Do they handle well? Amazing.
3) Do they last a long time? No, their lifespan is extremely short.
4) How many do you think I should buy? A brick, at least.
5) Where do you think is the cheapest place/deal to buy them? You can find them for $2 a deck or less almost anywhere by just googling for them, or try putting up an ISO thread here.
6) What are your thoughts on this deck? Amazing deck, beautiful for flourishing and performances, but it doesn't last more than a couple hours.