Honestly, any sight will do. I'd put my shooting with stock sights up against anyone with top of the lines any day. Sure brighter night sights are good but it's all in the hands of the shooter. I have stock sights on my 26 and glock night sights on my 23 (only because that's what they came with). I could pay to upgrade, but why? I carry my 26 on a regular basis. If they day comes and some dude is trying to car jack me or rob me. It's going to be within a 10ft radius and I won't even have to aim. I'm no marksman and I'm not planning on competing in a top gun style competition. I just don't see the point of getting rid of perfectly good sights because someone says a different sight is "cooler". If you are truely new to Glocks, learn to use the weapon first, then worry about your sights.
** Sorry, If I offend. I've been drinking and I'm killing some of the buzz being online, I just don't see the point of people stripping off sights because they think some Trijicon's are going to make them instantly better. Save the $200 and get another gun to add to your collection. **