I am always slow to put new stuff into use. It's an old guy thing I think, you get used to something and changing to a new model is often something that faces subliminal blocks. I figure you'll keep using the old one until you feel comfortable using the new one. When that time comes........... you may not even know but it'll come.
I just took a second look at the photos; we obviously have different views of "thread bare" the old one has another 10 years or so left in it