[Snowda]

I think its less hammer more nail vs screw. Both can hold wood to a wall and will be part of the building when you are done. For example a nail can splinter the wood which can cause a break down the line while a screw wouldn't encounter such an issue.

[girvo]

That goes even further, a nail gun can be much faster than a drill when doing large construction, but is more dangerous and easier to hurt yourself or mess up with.

Ie. MySQL is easier to get started with (well, was, nowadays it's much of a muchness), and is easier to scale in some situations but you trade for some other features and useful things.

Screws and nails are both useful, but I wouldn't just rely on one for every project :)