^ Very nice! Paint looks to be in good shape. That bike is worth keeping and upgrading.

When I moved to PHX, I also was suffering from the dreaded goat heads. I had to switch to the thorn-resistant tubes too in order keep my sanity.
I've since discovered, the flat issue is more location oriented. Older neighborhoods don't have much of a flat problem. The newer developments seem to always produce thorn flats. Also, areas with landscaper contracts produce more too, from dropping the cuttings all over the sides of roads.
I've moved to an older area and I no longer run the thick tubes. I haven't gotten a flat from thorns in two years.