Not dynamic : Data ranges become redundant when new records are added, resulting in established formulae needing to be altered. Overlooking these errors can be embarrassing and downright expensive, especially if important decisions are being made based on the data.
Protection of formulae : How often have you forgotten to protect the cell contains the formula that took you hours to test and perfect. It takes one instance of honest human error, and that formula is gone.
They are the ideal tools for companies who lack the financial resources and / or the staff required for generating spreadsheet solutions with specific programs. At present, the most requested types of ready-made spreadsheet solutions are "Spreadsheets for Small Business" and the subcategory "Spreadsheets for Actors".
You could make money doing something you love (or like [or maybe not so much but just really good at]). It's great to see a spreadsheet come together, and usually a lot better than what you originally envisioned. Especially when the dang thing works.
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