When Apple opens its doors on September 21 to sell the iPhone 5, you can bet the first couple hundred buyers in each store spent hours waiting in line. It's an inconvenience for fans--but for one start-up, it's a big opportunity.  

TaskRabbit, an online errand service, will send its personal assistants-for-hire to wait four hours in line at specific San Francisco Bay Area and New York City Apple stores for a flat fee of $55 dollars.

CNET reports that this fixed-rate offer from TaskRabbit is the start-up’s “experiment” in setting a flat fee for specific services in the future. Generally, users simply post a task on the site and workers bid a price to complete the given errand or task.

The 16GB iPhone 5 will cost about $650 dollars and, if history holds true, you’ll probably be paying your “waiter” about the same in line-standing time. According to the Atlantic, the wait time for the iPhone 3G was over 150 hours and last year’s release of the 4S had many at New York City’s flagship store trying to sell spots in line (starting at $50).

TaskRabbit, which was founded in 2008 by Leah Busque, has raised a total of $37.7 million in funding from investors including 500 Startups, fbFund, and First Round Capital.