in the technical side, moving to trash could involve depending on the system move the files form one hard disk to another, also form one partition to another and this takes time, especially if you have lots of small files or a really big file
in the logical side, move 60 gbs to trash?
how big is your hard disk, your trashcan?
i find a big 3 gbs but 60 sounds to me enough to kill a system!
if you need to remove those files from your system, delete is better, faster and permanent, also doesn't require that you empty the trashcan later
in windows and linux i use shift+del to remove permanently the files, no trashcan in the middle