Responding to the likeness of a Vekoma:
CP has tons of Intamins (several hundred, in fact), and only one Vekoma, as Justin said. The Intamins pull in guests like there was no tomorrow. Intamin makes high-capacity rides with a high thrill and recognisable profile. And they have a wide range of products that can be customised to be even wider. Look at Maverick, for example. Basically, it's just a sit-down looper. Intamin has pulled guests to CP for quite some time now, and even though the maintenance team may be frustrated, the guest numbers show that they have been a success. The Intamin-CP relation is quite strong, I guess.
Vekomas product catalogue has got some recognisable rides as well, but not many. They do make the GIB, the Big Air, and the Stingray as their biggest models. Likeness to Wicked Twister is the issue with the two first, and I guess Stingrays have a rather low capacity for CP to build one. If CP ever was going to have a flyer, I guess the first phone call made would be to a certain Walter and Claude. Unless Vekoma strikes gold with a big ride soon, I think we should look to the smaller parks for their models. Their new designs may be a lot better than the old, but I guess Cedar Point isn't the place to find out if it's true.
Also, I don't think Vekoma would be like to be marketed as "headache". Every head in the company sure must be working to remove that label from them.
CP has ran high-profile rides for quite some time now. High thrill, high quality, or just big numbers. They would need to keep up with that, unless they were building a kiddie/family coaster (in which case, basing it on moonshine would be a seriously bad idea). A coaster at CP has to be good, or at least marketable, to keep the GP's impression of the park as "pure awesome". It has worked for the Intamins so far, and it always works for B&M, so I guess those are good candidates. We shouldn't overlook S&S either, they have a few aces in their lineup. Remember the capacity issues as well, with the crowds CP pull, they can't go under 1200 pph for any of the marketed-as-big-and-awesome rides. And a lot of manufacturers have little experience with rides of that size and capacity.
So all in all, the fact that they have multiple Intamins show that this works. Vekoma has so far just not offered anything that other manufacturers can't do better, and price (often Vekoma's big selling point over the likes of Intamin and B&M) is a very small issue for Cedar Fair's flagship park.