Do I need DevonNotes if I have DTO?

[korm]

See

DEVONThink and DEVONNote on same computer?

The reason I also use DEVONnote is that an option under the Window menu allows a floating DEVONnote window. That can be convenient for making notes about a document open under another app, even DEVONthink. When not in use, I minimize the DEVONnote window to the Dock.