Two place that come to mind are DaSilva Motorsports at the intersetction of Rt.25 and Moultonborough Neck Road and H & K Powersports down in Gilford I believe. I am sure there are many others as well. The Sea Doo brand Jet Skis that I have experience with came from DaSilva's. This is also where we do all the seasonal servicing and any repairs.
They are not an inexpensive water toy to either purchase (new) or to have repaired if damaged.
I have only ever operated the Sea Doo brand and I have found the throttle control very uncomfortable to operate. You have to use the thumb of your right hand and it (for me) is difficult to feather the throttle easily.
I understand that the Yamaha's have the throttle on the otherside of the handgrip so that you use your fingers to operate it. For me, I would find that much easier and more comfortable for an extended time.
Given the expense you are considering, I would check the various dealer and ask lots of questions, take a few out for a demo ride if possible and see how the feel to you.
Heck, even if you have to rent a couple of differant brands / models it would be worth it. Anything so that you can make an informed decision with you purchase.
The 3 I have experience with belong to clients so other then putting them in the water in the spring and pulling them out in the fall, I don't spend alot of time playing with them. However, I can see where they would be a lot of enjoyment in having one or even two of them.
I hope, and am sure that there are lots of folks here who can share more information with you on the purchase and ownership of them.
Good Luck.
