Good cassette for touring bike?
I use my Trek XO-1 2011 cyclocross as an all-around bicycle. I rarely get off the road, though. I've also done a couple of ~1000 mile tours on it. Now my cassette is starting to show signs of wear and I'm considering buying a new one. The current one is Sram pg-1050 11-32 10-speed, which I find has a bit large gaps between low gears and I can't always find an optimal gear. However, I've never had to lift my ass of the seat. I only carry light to medium loads, max 10 kgs. My crankset is a 34-48.
Do you people think I should stick with 11-32 or may I regret not getting 11-30 or 11-28? I think anything larger than 32 is unnecessary.