Hi Ken,
Personally, I see nothing wrong with using cards for permanent photo storage, as long as they're well labeled
.
Same technology at the core as an SSD hard drive.
It's unconventional, but I'm assuming you are too or you wouldn't be asking the question.
My advice? - knock yourself out (so to speak)...
No need for smart previews on the road if you can carry your originals in your shirt pocket
.
My only reservation would be about filling them up - I have 3TB hard drives, which have plenty of room for all photos, a 128GB card would not.
Here's one idea (if you do run the risk of overfill):
* Keep whole photo collection (original source files) on a single rotating (and big) hard drive.
* Keep catalog, presets, ..., and smart previews on SD card (regular previews too if they'll fit, otherwise relocate them).
Then when you travel, you just pop out the card and take it with you, plug it back in when you return - no need for copying files anywhere, or catalog export/import. Of course you could do the same thing with an esata thumb drive...
If I ever get back to traveling, I may consider this arrangement myself - thanks for bringing it up.
PS - you have backups, so if your card only lasts 2 years, instead of 10, you can always toss it in the garbage and populate a new card from backup. I mean, same drill as if photos on spinning drive...
Rob