Thanks very much. Yes, command-i is helpful when you just need to know the size of the file.
Here's what I use it for: I need to make all images under 250KB to post to a particular website. I do this all the time, but all the images start off in different quality, resolution and size because they're all from different sources. I don't want to change proportions, or resolution, just the file size (quality slider).
So I used to click through them all, one by one, in Preview, and "save-as." I slide the quality slider down for each successive image until the file size is just under 250KB, then I save it.
Without this feature, I have to do a trial-and-error for each image, then "command-i" each one. Some end up over 250KB, some too far under. So I try again on perhaps 90% of them, trying to remember which were too big and which were too small, and over and over again, getting just a few right with each pass, until all images are about the correct size.
Something that used to take 5 minutes (for, say, 50 images) now takes -- no joke -- two hours.
It doesn't seem possible that Apple really eliminated this feature -- and for what reason?
Are there Apple representatives on this board? Or is this just a community of users helping one another?
Anyway, thanks to all who have replied so far. Much appreciated.