Is there a minimun run for offset printing?
Yes, the minimum to print offset is 250.
With that said, on smaller runs we print on the best digital printing equipment on the market that truly rivals offset printing.
In the past, customers associated digital printing with lesser quality printing, as even low-end Xerox color copiers were categorized by some printers as "digital printing" when in fact that is just color copying which produced poor quality "digital" results. So digital printing got a bad rap that has stuck in some circles. The digital print market has evolved tremendously and in fact, digital printing today is virtually on par with offset printing, and in many ways, superior to offset printing.
Digital printing has allowed projects like custom printed 25 greeting cards or 25 stickers to be made possible. It has also allowed for great variable data flexibility.