I think we paid about $150-$200 a head for ours? Artemis was significantly more than a normal launch. F9 day launches can be viewed from the Saturn V center for free with a daytime admission

Live in Michigan, traveled to Artemis 1 twice. First time in august we got scrubbed twice. We tried planning again in September (the 27th launch date was my birthday!) and got shut down by the hurricane. They finally agreed to go in November so we flew back down and after an hour or so of delays it went off at like 1:42AM. We had passes with KSC to go out to the Saturn V center and we had also brought a nice canon camera for this launch. I do not recommend the traveling experience and if you’re gonna go that far, you have to be ready to do whatever. KSC does not do refunds for the launch experiences and for something like Artemis, they’re not cheap. It is however the absolute best way to do it and watching Artemis 1 was incredible. If you guys are full on ready to do this, go for it! Your son will love it. But you have to be ready to fight for a hotel room, stay up long hours and camp at the park, risk flight delays/pushbacks, or that it’s just not going at all. That’s the unfortunate state of nasa right now. Hope this helps! I’m hoping to go back down for future missions as well :)

Edit: Falcon 9s almost always go on time and can be seen from the Max Brewer Bridge (depending on the pad, this work well for 39A and 39B. Go further down the coast towards cocoa beach for SLC-40 launches) about once a week. They’re fun but nowhere near as impressive