If you have a good solution you can always add more scanners in the future. Think of the hassle of sorting the different order forms. Form recognition can save you a bundle if it can intelligently identify the form. Some systems require that you place a marker on a fixed location on all forms. You are better off with a system that allows you to specify markers anywhere on the document.
Recent technology is capable of recognizing a form by the data field it contains.
In fact, if you can have this technology, you no longer have to worry about creating a new form definition every time marketing moves a data field an inch. Two forms are equal if they contain the same data blocks. Tomorrow, if a new OCR engine hits the market, you will want to get the additional two percent accuracy. There are many data types that are unibiquitous to order forms. If your form definition module allows you to distinguish them, your recognition system can perform better.