This business started out of a need that I had. I've hired numerous assistants for myself in the past to handle these types of tasks for me. I've always been OK with paying a premium to have thing handled for me like magic. I've had my assistants do work for other people too to simplify their lives, and often times it was for things just like this. Here, we realized that instead of having to pay a salary, or even a monthly fee, we could do it on a per-item basis. I didn't know how popular it would be, but it seems that other people in addition to me are interested in the idea of paying a premium on top of per-item prices in order to have them handled like magic. Maybe it's not for everyone, but there is definitely a market.
I love the idea. I currently pay minimum wage to a student friend of mine when they have time, but when they're busy paying the equivalent to a service would suit me fine.
I have no idea how viable this is, but if you could find an effective way to extend this to "we will deal with your suppliers who only work by phone, and charge you for the privilege of not having to make the stupid call yourself" I would be very interested ... but probably useless as a customer, since I'm in the UK. It's just I already pay for fulfillment work and wish I could easily pay for utility company wrangling, and if somebody can validate the model hopefully somebody will do it over here eventually :)