All good points. Sharing models without emailing spreadsheets around (now you have your version and I have mine) has probably been the best thing I've gotten out of it so far.
I've already had a few people email me links to their model with questions about implementation. Since posting on HN there have been more than 2,000 models created. If someone finds a serious bug in a formula or better yet, a new feature is added then they all get the benefit. There's not very clear path(s) to upgrading an Excel workbook.
And my straw man argument: I could make a case for building a lot of stuff in Excel that currently exist as successful hosted applications. Lowering the barrier to entry is one way to differentiate.
I've already had a few people email me links to their model with questions about implementation. Since posting on HN there have been more than 2,000 models created. If someone finds a serious bug in a formula or better yet, a new feature is added then they all get the benefit. There's not very clear path(s) to upgrading an Excel workbook.
And my straw man argument: I could make a case for building a lot of stuff in Excel that currently exist as successful hosted applications. Lowering the barrier to entry is one way to differentiate.