Groy, sorry about your need for surgery but I commend you for arriving at the decision point that many of us have faced. Understand that there is no right answer - only what is right for you. It's all about what you value most. For me - I placed the highest value on the greatest potential for a 'one and done' surgery so I went On-X at age 52. Two years later, I am thrilled with how I am doing... skiing, trail running, mtn biking, weight lifting, volleyball - am back doing all I love and much stronger than when I was struggling before surgery. Have only had one bleeding incident and that was me being dumb and not talking to my cardiologist before having a nose polyp removed. Quite messy - but dumb/preventable. The Inspiris is a great valve and yeah, the potential for TAVR - and a more resilient TAVR - is there. Impossible to know. Wishing you the best but know that the mechanical valve option shouldn't hold you back too much.