andye - 6:48 pm on Mar 29, 2006 (gmt 0)

the service is the kind of thing people would come back for again and again, if only I could reach “critical mass”.

Can you get customers to buy more than one 'go' at the service at one time?

For example, when I get digital photos developed online, I can pay in advance (at a reduced rate) for a bulk load of photos, then gradually use up the credit on a number of small photo orders over time. I.e. they want to lock me in, but they're willing to give me a reduced price if I'll accept that.

hth, a.