I am not sure about the exact cost, I\'ve had this for years. Just recently added the TV, which was around $300. The Optishot was $300 at the time, projector was around $600, materials (cage, net, screen) were probably around $1000, and I think around $150 for the mat. Still need to finish putting up all the blackout panels and straightening out the screen/net, but it works for what I use it for