Ask HN: Why don't we have downloadable webapps?

[sammville]

I was wondering why i haven't noticed any downloadable webapps. What i mean by downloadable is for example a CRM software (highrise) that you can download and install on your server (like wordpress) rather than paying monthly. Any thoughts?

[paulhauggis]

Why would I want to do that? Updates are more difficult and I most likely won't be able to charge a monthly fee.

[sammville]

You could charge a one-time fee and offer yearly paid updates.