I think that people get employed with all levels of experience. At the moment it seems quite easy to get a job if you have a few thousand hours, but its still pot luck if you're low on the hours front. At the end of the day, whens all said and done, when the final whistle blows, at the final act(can't think of any other cliches), if you're instructing it means you're flying, getting paid for it, building experience(which is never a bad thing), and you can still be looking for a job. Surly(don't cal me surly) its better to be flying and looking than not flying and looking.
I graduated just after september the 11, I completed an instrutors course, got a job instructing, and in 6 months was flying for an air taxi company. Three years and 1500hrs later, i got a job with a regional. My air taxi work took me all over the uk, and most of western europe, all single crew. if thats not good experience, then i don't know what is.
cheers, homer_j