[Zope] keeping files in the local filesystem

[gf]

Hi,
I am a Zope newbie and would appreciate some counsel from experienced
Zope users.

I have come across several products (e.g. ExternalFile) for keeping
files in the local filesystem.
I was wondering about the wisdom of keeping objects, such as images,
dtml documents, and page templates, in the local filesystem. On the
face of it, it seems like a good idea since tools like version
control/management and backup software could manage the files
directly.

What do you see as the upsides and downsides?

Thank you for your input.

Best Regards,
gyro