As a touring cyclist of over 40 years standing and an ex-commuter cyclist, I guess it's time I joined in here too..
I was fortunate to be able to retire early and have upped my yearly mileage to between 7- 8000 miles, hope to get to 5 figures in a year sometime...
As for the brakes/tyres discussion, I became a convert to hydraulic discs 5 years ago and would not go back. One advantage not already mentioned is that they don't wear your rims out!
Tyres... I use Continental Gatorskins and I rarely get punctures. The trick is to inspect them regularly and remove flints, bits of glass etc. BEFORE they go through! I do this at least fortnightly, more often in the winter.
Here's my favourite bike, easily the best ride I've ever had...
It's titanium framed, with carbon forks, glides like a Rolls Royce...