Spreadsheets are like Swiss Army knives for businesses, allowing for unique and tunable solutions. They are an extension of the long tail of use cases that haven't moved into dedicated SaaS apps yet. Craigslist was a prime example of breaking apart a major product into multiple startups. However, there is a question of whether beefed-up workflow tools eventually give way to purpose-built systems of record. The valuation reset may reflect this dynamic.