I'm not surprised that your wife doesn't want you to bring anymore cats 😂 6 cats!!! I can't even imagine how much fur you have to remove daily from your furniture.. and how scratched your hands must be!
My cousin had a JRT too, but I can honestly say that they didn't take care of him properly. They loved him, but these are special dogs and you have to know how to take care of them. You seem to be an expert, 14 years is an amazing age!
Hope you had a great weekend and I wish you a lovely start of the week!