I was biased to surgery due to its speed, allowing better analysis and having better options for further treatment, but mostly because of my condition. My tumour was said at diagnosis to be near the edge close to breaking out and I wanted it out fast. I wasn't over concerned about side effects.
The surgeon gave me more information, saying it was 13mm at the apex which further increased my bias as the apex is at the opposite side to the bladder so a clean cut might have a good chance of taking it. To my simple thinking anyway.
After the op it was upgraded to 4+4 although the margin was negative. This gives me more evidence on my condition than any other treatment would have. Although the upgrade to 4+4 isn't good, the negative margin is. I also know it was T2a when I'd been told it might be T3 which is another useful piece of information for me and for anyone looking at my case.
I also think, though perhaps falsely, that being so focused on what I wanted helped to speed it up as the surgeon got me in 10 days after I'd seen him.