EOS is an upgraded like an ugrade to blockchain tech . Lets be clear here: Bitcoin, was built on the ingenious blockchain tech. Bitcoin is what led the way for more innovation and every other variation of the blockchain. To imply that bitcoin is not a product of years of experience is misleading.
Ps you can buy tokens after ICO. If EOS delivers in its promises and based on activity and consistent update report from @dan , it is most probable that it will. If it does, the future value of EOS tokens can increase significantly. In that case; purchasing it on exchanges early may prove to be just as profitable in the nxt 3 to 4 years.