When discussing what a parks next coaster might be, there seem to be a number of rules, which mainly take into consideration what the parks current line-up is and what they miss, Along with space, restrictions, budget and other factors, including the target market' e.g. 'they already have a spinner - so it won't be that' Would you say these are REAL rules - or just rules enthusiasts place when speculating? What history has told us is that parks often surprise us! e.g. - 'but their last coaster was a launch.... odd decision that the next coaster's a launch too' OR 'They haven't got a woodie so their next coaster will/should definitely be a woodie'....... and then it's NOT a woodie! It also comes down to manufacturer e.g. 'they already have 3 B&Ms - so It won't be another' As though a park NEEDS to have a mix of coaster manufacturers to have a decent line up, does this need to be true? The thing is - why couldn't a park have two spinners? ( I could see a park having a Mack spinner and a Maurer for example), or why can't a park build another woodie even though their last coaster 2/3 years prior was a woodie? Why can't a park get two next-gen Vekoma's one after the other - if they are both different layouts and completely different themes? Why don't parks just build GOOD coasters as apposed to making sure they have a complete 'set' of coaster types! I'm not saying they should personally - I just think its interesting the conclusions we jump to.