How much time do you spend on upgrading vBulletin?

[freeones_raymon]

I'm wondering how much time other people are spending while upgrading their vBulletin software. And I'm talking about EVERY aspect of the upgrade, so downloading, preparing, testing, fixing, template edits, etc... everything!

So I hope a lot of people will answer the following questions:

1. How much time do you spend on upgrading?
2. How many (external) products/plugins do you have?
3. How many different styles are you using?
4. How many template edits do you have?
5. How many (vBulletin) code changes do you have?
6. How many threads/posts/members do you have?

Here are my answers:

1. Between 8 and 12 hours
2. 30 products
3. 2 styles (default + mobile)
4. 34 changes in 22 templates
5. Multiple changes in 11 files
6. 483,153 threads / 6,011,676 posts / 452,441 members