One thing would be nice is more specific information as to how busy the store is at a given time. If I knew that a certain time of a certain day is a lot better than a different time that day, I might alter my schedule. The site has very vague recommendations as it is.
Trouble is how you achieve that information. Because even if a store studies their traffic every hour for a week, month, year, the day you go in during that 'dead time' is the day that everyone shows up at that time.
Not to sound totally snarky but if you are that bothered by having to wait, just order online. Particularly for most folks around here, who probably know exactly what they want and need, it is a valid option. Let the idiots that don't know a PCI slot from their butts go and get the 'expert' advice.