backup tape drive

I would like to ask if the DLT 8000 tape drive is the best enterprise back-up solution? i’ve been searching for the best back-up solution for our company because i want to be sure that my recommendation will be useful and cost-effective for our company. with the recent economic downturn, we should be very careful on huge investments or capital expenditures. can you please provide me the best back-up solution in the market today? thanks.