I personally disagree with you're opinion because when it comes to a cloned coaster you are still riding a new coaster that you have not ridden before, this new ride is a new segment of track which to me makes it a new credit. (this is just my opinion of course) also as for your opinion on a different experience on a ride would you count Great nor'eastern at Morey's pier as it has different trains hence a different experience
It's okay, everyone disagrees with my opinion
There reached a point (must be more than ten years ago now) where there was constant arguing about this. It tied in with people being a bit "I've been on 200 coasters, so have a better opinion than you" - even though 50 of those were Big Apples and 20 SLCs.
The problem is that the "need to collect" outweighs the sensibility of everything.
The definitive argument is always "if you moved Nemesis from it's hole, to another park, would you class it as a new credit?"
The "experience" would be far more different than riding 2 Batman clones on Six Flags tarmac. Yet, the Batman clones are "different", even though you couldn't distinguish one from the other. So, do you count a relocated Nemesis as a new credit?
Some people do. Okay, so then do you count a traveling Big Apple at every stop on its tour of the country? Every new location it sits on the same field in the same town each year?
Where, exactly, does the madness end?
If anywhere above, you find yourself thinking "that's... Erm, wrong/stupid" then you're already halfway to my side
The next argument is this.
If you drive a Ford Focus, and only a Ford Focus, a new model each year. How many different cars have you driven? One per year. Yet, how many different car types have you driven? Just one.
If you drive for 30 years, is your experience and "30 car count" better than somebody who has driven 30 different models?
If you've only driven a Ford Focus, you've only ridden an SLC...
Yes, they're different individual things, but a collection of 30 of the same thing is pointless in terms of collecting where range is king.
Any closer to the bright side yet?