I have learned from the exploits of Windows and Palm that jumping on board with an update is paramount to pure folly. No, I will not jump to Snow Leopard just yet. There are a few issues that are still being worked out, ie 1Password not being fully compatible with the 64-bit portion of the system.
After listening to The MacGeek Podcast a few days ago, which was broadcast before Snowleopard was released, I can see a few issues coming forward. For one, the podcast points to the whole 64 bit controversy. It seems that Snow Leopard is actually booting into 32 bit mode with a 64 bit layer, namely certain programs (core programs) running on top. This, probably to protect the kernel, which is undoubtedly still 32 bit.
Sounds confusing? You bet! It it's not a simple solution then a lot of software is bound to be butchered. Therefore, I'm holding out for now. I'll see what happens in a few weeks when all of the dust settles.