My business is not what you would call traditional. I sell in all 50 states. Nothing new there, but my product is individualized for each group based on their geographical location. The product varies from county to county inside of a state. Since the product varies, the sales material must also. I have to know that when I order brochures and sales materials that they will be done correctly and delivered on time.
One great aspect of online printing is that I can be in Tennessee, have a meeting in Nevada the next day, and know that the material I need will be delivered to the hotel I am staying at and be correct and ready to go when I am. A few days heads up and everything is ready. I tried that with a brick and mortar location. That was a disaster with a capitol D. Material wasn't shipped, mailed to the wrong address or printed incorrectly. I even tried some of the bargain online printers. Yeah, they were a bargain all right. What a waste of time. You don't understand the peace of mind that a reliable company offers until you suffer the results of an unreliable one.
The only universal truth in online printing is that you have to research the company and be able to trust the one you work with.