Bash pattern matching

BASH offers a nice way to replace patterns. Until now I always used basename and a variable.
For example moving all .jpeg files in a folder to .jpg (hey, it's just an example..)

for moo in *.jpeg; do
    newname="`basename $moo .jpeg`.jpg"
    mv $moo $newname
done

But isn't that just plain ugly? That one is lot nicer:

for i in *.jpeg; do
    mv "$i" "${i%.*}.jpg"
done

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