Gym climbing is not rock climbing because...well, you are not climbing rock. You are climbing artificial holds made of sand and resin in a controlled atmosphere. True, gym climbing is easy, safe, and a great way to build strength but the fact remains you are not a rock climber- you are a gym climber.
Rock climbing involves leading pitches, route finding, ...
This kind of device is rarely used in sports as it is only useful when used with fixed ropes. You mentioned crevasses: The rope is not fixed here and you are tied in, so it is hard to image how such a fall arrestor would help.
However, one kind of climbing frequently uses vertical fixed (steel) lines: Via Ferratas! In typical Via Ferrata kits, shock ...
These devices are intended for professional rope work. When doing rope access work, there are typically two ropes involved. One is the working line which is loaded with the worker's weight. The second rope is a backup line which is only loaded in case the working line fails. An arrester device is running along on the backup rope and moving ...
To me it's not a question of climbing outdoors is "cooler".
There is a reason that there is such a rich collection of books, magazines and other literature on the subject of mountaineering and rock climbing outdoors.
I can look back on many experiences I have of climbing on local crags and in the Alps over many years. I can almost relive those experiences ...
One key aspect that has not been mentioned: routefinding indors is almost trivial, outdoors it becomes a real challenge and makes climbing a much more creative experience.
In the gym, hold color (or tape) tells you exactly what features "exist" that you could use to proceed, and the number you can reach at a given point is usually small, half a dozen at ...
I'm predominantly a gym climber who dabbles with some outdoor sport climbing occasionally
More often than not climbing crags are in wilderness areas, be they remote or little pockets nestled into urban setting. These area in themselves are often quite tranquil and pretty. Get to the top of a climb, clip in and lookout, the views are often ...
Full body harnesses are not used because of:
Weight (for obvious reasons)
Bulk (Getting all gear to your climbing
desintation can be a chore. Everything else being equal, a more
packable harness is preferred)
Freedom of movement (a full body
harness hinders arm movements)
Clothing (Taking a jacket on and off
with a body harness is a mess)