A person with proven competence in this area CAN become "notorious" for developing spreadsheet applications, which eliminate drudgery from the process of using MS Excel to handle large amounts of data. Typically, work that takes hours or days will suddenly take minutes or seconds to finish.
This last point in my opinion is ONE major benefit you must seek to extract, if you choose to engage the services of a developer. S/he should be able to help you develop (in_house) expertise needed to maintain the application AFTER s/he is gone. If you fail to ensure this, all your cost_savings from using the application might end up being spent paying the developer to maintain the application over time in the future!
How A Well Known Corporate Multinational Used Spreadsheet Tracking/Automation To Repeatedly Cut Spending _ And Increase Profits. During my graduate training(while in paid employment), I was redeployed from Guinness Nigeria Plc's corporate headquarters training office(in Lagos) to the Benin brewery training department (in Edo state), where I was assigned the _ additional _ job of using a custom Lotus macros driven Variable Cost Analysis spreadsheet application to generate brewery reports for dispatch to headquarters.
You will find this article of considerable reading value, if you belong to at least ONE of the following spreadsheet user categories: Owners of Small Businesses _ Restaurants/Bars, Hotels, Hospitals, Factories, Consultants etc; Decision Makers/Job Holders in Corporations _ Materials Managers, Sales/Marketing Analysts, Financial Analysts/Accountants, Project Engineers; And Anyone desiring to make BETTER sense _ and use _ of data!