I can see that people are trying to give you some crap about wanting to buy a new gun, but I know exactly where you are coming from. I'm only 22 yrs old and I wanna buy as many as I can get my hands on. I have a .300 win mag that I've put a lot of time and effort into and it's a 700yd gun all day and all I want to do is buy a bigger one to keep adding to the collection.
Don't let those grumpy know-it-all's tell you that you already have the right calibers and what not. Go pick one out that you like and add it to the collection. Whatever you do, don't sell any of your old ones! I'm gonna build a .338 lapua next and I'm super excited. They have awesome ballistics and they are a blast to shoot. Once I started getting into long range shooting it opened up a whole new world for me. I enjoy target shooting long distances just as much as I like hunting. It's a whole lot of fun and a great hobby to get into and a .338 lapua is an awesome rifle for long range shooting (and killing
Just remember, we are all just kids trying to get more toys