I'm not sure if you've seen this in the other threads on this topic, but the gas tube can be easily cleaned without removing it. The technique is to remove the gas piston as normal, but then instead of removing the gas tube as well, just leave it on the rifle and swab out the inside with a cleaning rod and dry patch. It's easy to do.
Removing the gas tube is really only necessary if you somehow get mud or similar gunk stuck inside your rail.
You may also want to remove the gas tube every few thousand rounds to give the rifle an extra thorough cleaning. In such cases, you'll have to remove 7 additional screws to get the Samson rail off (if that's what you have) before removing the gas tube.
I like the solid construction of the Samson rail and removing the rail once every year or two for a thorough cleaning seems like a negligible inconvenience. That's why I went with the Samson.
Removing the gas tube is really only necessary if you somehow get mud or similar gunk stuck inside your rail.
You may also want to remove the gas tube every few thousand rounds to give the rifle an extra thorough cleaning. In such cases, you'll have to remove 7 additional screws to get the Samson rail off (if that's what you have) before removing the gas tube.
I like the solid construction of the Samson rail and removing the rail once every year or two for a thorough cleaning seems like a negligible inconvenience. That's why I went with the Samson.