Which Diamond Coring Setup?

eddiecalder

Flex, Milwaukee, MK, HILTI, Dynatech, Shibuya, Cardi Core, Golz .......
There are so many machines out there. I need a rig that will do holes from 2" - 16" and is not to heavy to carry around. I am leaning towards the Shibuya ( the one my company has ) or the Hilti ( only because i always hear about how good the brand is ). The thing is the Shibuya costs around 2000 for everything ( excluding bits ) and the hilti will run me around 8000 (excluding bits) . Is the milwaukee quality compared to the hilit? Is the shibuya any good or do i like it just because its all i have used? Are there any companies that i missed that are worth looking into?