My SavedVars folder weight is ~124 MB - yes, I'm addons addict, more than 60 addons overall (if not count all MM clones)
Not all of them are enabled on all characters tho...
So, ~124 MegaBytes, 78 files, there is some from uninstalled addons, sure, but their weight aren't big.
Most heavy files are at image. This is only 38 files, so also 40 more with size less than 70 KB