It would be better to bite the bullet and get a dog now while your wife has time to train it, rather than fighting the urge for two years before caving and getting one. :) We always planned on getting another rescue after our first dog past last summer. Then just before Christmas my wife had a weak moment and decided on a puppy. We're a few years younger and I realized that by the time this dog passes, we may be at retirement age (but not retired).
Yeah, I work from home and she's looking for SOMETHING to do... and I'd love to guide her on how to train the dog up to be like my dog was when she and I met originally... And yeah... get a dog now, and it lives for as long as my last dog (15 years), then I'll be retiring (yeah right!) about the time this dog passes, as well.... hmmm....