We are a small consulting shop, with about 12 end users for SSAS and SSRS. We at the point we need a separate DEV environment. So is it better to create another instance for the DEV environment, or because of low use, is making simply a DEV copy of the database within our 1 environment acceptable?
Since it's Dev and serious issues could occur, I would prefer to isolate it from production. It doesn't need to be on a larger server, but you're better off having it separate. As to low use, in theory, it should get quite a bit of use, just not 24/7 like a production machine.