ok, here's my outlook..

you go non exclusive, you have more flexibility, if one of you're distributors goes under, it won't wipe you out completely BUT you have to deal with a few different companies, and be a lot more on the case with your accounting..

you go exclusive with one distributor, you only have to get your money back from one company, and only have to deal with one company, BUT you are limited by who your distributor has deals with for other territories and if they go down and they owe you money, you're more likely to be screwed...