I (still) do not agree.
Responses in this thread are based upon personal experiences, Bitter for instance doesn't see it as an issue, nor do I.
If you want to tweak it, use the scenario editor. It's still a value that can be determined by the player. I just don't understand why this is an issue with some people, just change the value.
I'm off course no Frontier, but my response would be, "if you want different values, change it in the scenario editor", but then a lot here wouldn't agree, because it is a "bug".
It's the main reason you can change the value there, so it could suit your style. What value that would be is for yourself to determine, if you let Frontier change the value other people will complain that rides never break down.
This is one of those things where Frontier would never satisfy the majority if they change it, but the majority is still able to satisfy themselves through changing it themselves.
Edit:
Also, several people have said why it's possible some rides break down faster than others, and that is for instance determined by the amount of non-standard track you use.
I haven't tested it off course, but a coaster with 3 launches should break down faster than one with 1 launch.
I did one test where one track was longer than the other, but both with 1 launch and 1 train (only the last part was different from each other) and the breakdown rate was the same, so length of track doesn't matter.
I went through this with the developers right after the game came out because I had a couple threads on this thinking it was a bug and was trying to help them diagnose and fix it. The issue is with the number of "special" pieces -- pieces or parts of track that do something (like brake, accelerate, lift, station, block section, etc.). There is an algorithm that puts it all together and gives it a maintenance score that determines how quickly the ride breaks down over time. I had a video (not sure where it went, or if it would still be accurate) that showed a ride that was literally impossible to stop from breaking down because, even brand new, it would deteriorate faster than the 10 minute (again, at the time) minimum amount of time the game would allow you to set a mechanic on.
This led to the ride always failing before the first repair cycle even ticked over. I've not played in a while and am not sure if this was fixed or not -- for me a simple fix would have been to allow for mechanics to repair a ride every minute, or to change the algorithm so the maximum rate of deterioration matched the maximum rate at which a ride could be fixed.
It turns out it was a design decision and not a bug -- so I gave up the fight. There
was an issue with it, for me, back in the day, but it was not a priority. Unfortunately it was a deal breaker for me since it was one of the only levels of complexity left because the economy simulation was so bad at the time.
People (Like Bitter Jeweler in this thread) constantly said things like "It's not realistic" or "then don't build rides that big or complicated," or "I don't run into the issue, therefore it is not an issue so I'm going to point out that you shouldn't be talking about it," -- basically saying to play the game a different way than you want to. But for me, I really wanted to have that part of the simulation and not having it made the game way less enjoyable for me. I'm curious what it is like now with the added training facilities and economy sim -- but there used to be an issue (for me), that was not really an issue (for the developers), and that was that.
For what it's worth -- it looks like they did allow for a
way to fix it through the scenario editor -- which is perfect if it addresses the issues I was having. I do like the idea of a park with very high breakdown rate as a scenario just like I like the idea of a park with what I consider a reasonable breakdown rate that allows me to build crazy long coasters ... maybe offset it by raising the cost of maintenance workers or something.
I will reiterate that I've not seriously played this game in over a year or so, and I assume with the expansions and patches lots has changed.