I did more market research on commercial code libraries that create, edit or otherwise manipulate Excel spreadsheets (specifically using .NET languages (C# *ahem*)). Mother of columns and rows, they’re expensive! The mid-range products are about US$ 500 and the high-end products start at about US$ 1000. And that’s just the per-developer license. If you have more developers, or need a site-wide license, then you’re looking at thousands of dollars. If you consider license renewals, or subscription renewals, the options can boggle your mind.
So after thinking it through, I have to increase the price of my programming guide (Spreadsheet Open XML From Scratch). As ironic as it sounds, it might be the best thing I need to do. Simply put, my product is not expensive enough.
You will do well if you read some psychological books on human purchasing behaviour. It turns out, as studies show, there is a “perfect” price for every product (or service) for the intended audience (or market if you prefer) at a particular time period. Veer too far from that perfect price, either too cheap or too expensive, and you might need Herculean powers of persuasion to get the customer to buy.
And here I thought I was pricing my guide too expensive… I want to thank the people who’ve already bought my guide. You’re awesome.
So here’s the thing. I’m increasing the price of the guide from US$ 47 to US$ 97 (but please check the product page for current price since I might have changed it. Again…). And I’m doing it on 1 March. Why am I not doing it earlier? So you can buy the guide at the current price if you so choose. And because I’m busy writing my magazine and updates to the guide.
There are updates to the guide? Yes. And if you have anything you want to learn about creating spreadsheets from C# (or VB.NET) and with the Open XML SDK, now’s the time to tell me.
Then buy the guide at its current price, and get the updated version (soon). You get full working source code (not a code library, source code) that you can use with complete freedom (no license fees, no GPL’s, no license requirements, no need for attribution). Use the source code in a personal project or commercial product. No problem. And you get in-depth explanations of concepts taught for a particular task.
Buy it now before the price goes up. Leave comments here if you have specific Excel creation/editing tasks you want me to cover in the updated guide.