Dear David,
I don't feel qualified to give you that opinion. I think your doctor is concerned that if you have many recurrences, you may become one of those who has a worse outcome by delaying cystectomy. But that's why you need a qualified second opinion - so that you're not pushed into something, and yet do what's best to keep you among us for a long time.
BTW, how about an 8 week course of Mitomycin C if the BCG hasn't worked? I's not better than BCG, but it's different, and it appears to have worked for me.
-Warren
TaG3 + CIS 12/2000. TURB + Mitomycin C (No BCG)
Urethral stricture, urethroplasty 10/2009
CIS 11/2010 treated with BCG. CIS 5/2012 treated with BCG/interferon
T1G3 1/2013. Radical Cystectomy 3/5/2013, No invasive cancer. CIS in right ureter.
Incontinent. AUS implant 2/2014. AUS explant 5/2014
Pediatrician