If your building a cocktail your looking at $400, I use $50 comps from ebay, 4/8 way mag stik plus from andy at ultimarc= 36 a piece, the ipac= 36, I go 6 buttons each plus the player 1 and 2 so 14 total, from ebay you get those cheap so $24, 21inch monitor = 120, marquee=40, and then wood and plexi around 120. I can make two cabs out of a 4x8 sheet of ply. Thats just the cocktails i make. You shouldnt go over 500 if you want a nice working arcade. but you can get crazy with alot of money.