The problem I have is that I say ? years and then the kids need clothes, the car breaks down, the house needs repairs. Before you know it, your gun nest egg is gone.
LOL, you left out divorce, orthodontics, tuition, weddings, and having enough left to actually get out and use the thing. I get it, sometimes right now trumps getting it right.
I'm a year behind in my plans for a dedicated long range rifle. My son did a double major thing that added another years tuition.
Technology changes every Shot Show, just figuring out which scope to use is a moving target on the run. I just bought a Nightforce ATACR, 2 years ago when I started saving for a Schmidt and Bender, this scope was not available. Now I'm saving for mounts, they don't give away 34mm rings, and an angle/level indicator has to be added.
Then there are the accessories, something to measure atmospheric inputs is handy.
I'm struggling with temptation myself, I sold a rifle to a friend years ago to pay divorce costs. This year he gave it back, said it really didn't shoot. It's a Remington 700 light sporter that originally was a .222 Remington. I had it chambered .223 Remington for cheaper ammo, and it was a gun I started kids with. Not real high expectations, but I don't remember it being a poor shooter. The problem seems to be it's a 1:14 twist, and the newer, longer bullets don't work but the 40-45 grains are decent.
Now at this point in time I have absolutely nothing invested, I have a heavy barreled .223 Tikka that shoots great, and I've got it in my head an ultralight 6.5 TCU would make a great transition gun for the kids I take shooting/hunting. Perfect for filling youth tags with small does, at close range.
It's not always about logic, and as often as not we don't get there in a straight line.
Another way to look at it is what could you do for your 7mm that would make it more useable for what you want, using the money you would spend buying another rifle?
I have a safe full of stuff, so trust me, I haven't always taken my own advice.