A roll-up must have a value-add thesis statement. A roll-up based on financial engineering will fail. Businesses that are a) CapX intensive, b) subject to technology changes, c) each order is unique, etc are not good for roll-up.
Printing industry has been under pressure for many decades.

Mike makes a great point about the challenges of roll-ups in CapEx-intensive and highly customized industries like printing. To build on that, even if operational efficiencies are introduced, the long-term viability of a roll-up in this space likely depends on securing recurring revenue streams—such as subscription-based print services or managed marketing solutions—to offset the variability and one-off nature of typical print orders.