WOW! I never really took the time to crunch the numbers. That's enough to add a DECENT assortment of flat rides and food stalls to a park.
No wonder you wanted to keep that fifth train rolling. You can wager that I'm going to remember this little lesson you showed me today.
What cost to build on flat land, are you looking at?
As far as the numbers slipping, there is a sort of "Novelty Personna" that the rides get. After a while, the peeps get used to it, then it's only the diehard fans of the attraction that sustain it's keep. It would be interesting to see how long it takes for this coaster to totally loose it's fanbase. To the point where the coaster costs more to maintain, than it brings in.
Yes, it's impressive isn't it? The money calculations were done on a whim to see if the financial difference would justify the extra cost. Thanks to leaving my memory stick at home (with all the files on it) I redesigned the queue and recreated exactly the larger version from memory. Somehow the difference in the queue layout allowed a much higher maximum: 6,216 pph, and that was in a rainstorm! Now the financial difference is a much bigger 792 pph / 744 pph or an additional £5,623.20 / £5,282.40 per hour respectively. That's a huge amount of cash from one more train and a slightly larger footprint. You could build another coaster for that.
I used a £7.10 ticket price (equal to the ride's excitement level on masterbench v1b) as my reference for these sums. It's a good tactic to set the ticket price like this as guests are always willing to pay and they don't say it's too much money for quite a while, even after the novelty has worn off. However, the test was done on an rct2 version of Arid Heights with lots of other good coasters nearby and a higher excitement level (7.24). This may have skewed the popularity a little, but even so it's encouraging. In addition it stayed at over 6,000 pph for most of the rainstorm - much longer than the previous test. I think it would take many years to lose it's fanbase as after 10 years on last night's soak, v7 still pulled in over 3,300 peeps.
As for the construction costs: for version 6 it's £22,943 with a plot of 27x12, and for version 7 it's £23,389 with a plot of 29x12. The cost difference is £446 for the 2 extra squares and 1 extra block brake (a lot less than I expected) but if you have the space and that extra cash, v7 is a significantly better bet. That said, v6 can generate lots of profit as it is, so both versions are crowd-crunchers and money-makers.
Version 7 is now on the ridex for you to look at. It would be interesting to hear how it gets on financially, setting the initial ticket price as explained above. On masterbench v1b version 6 didn't get many guests for some reason. Maybe I built a bad park. Anyway, I must get to bed now as it's half past 11 at night and I'm tired!