I tend to agree with ddy that it's a pointless endeavor, and I am a guy who works on tape a whole lot. The main thing that tape buys you is that it forces you into a specific workflow and forces you to avoid certain production practices that result in poor performances that don't integrate well. Dubbing your multitrack to tape doesn't do any of that for you, it just gives you a generation with slight loss.

Now... if you want to take your multitrack and do a final mix through a console to a 2-track recorder, THAT is worth doing, because of the process of mixing as performance is a big deal and if you're good at it, it can be of real benefit to overall production quality. (And you also have a 2-track master now, which is likely to outlive modern digital formats, unless it doesn't.)
--scott