Do you recommend 64-bit system?

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Do you recommend a 64-bit OS?
There seem to be a number of incompatibility issues with existing 32-bit
software and peripherals.
The supposedly main advantage of a 64-bit OS, as I understand it, is the
ability to have individual files larger than 4 GB. Is this something that I
am apt to need? What files would be that big? Maybe Blu-ray High
Definition movies or using my PC as a TiVo?
I am not aware of any user impact of the current limit of 32-bit precision
for calculations so I don't see how more accuracy would help.
Am I missing anything?


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