I disagree.
Once you do one barrel swap, you'll do more. It's very easy to do. Buy the tools and do it yourself. Then you won't be dependent on a smith for a 15 minute job. I have done about a half dozen or so now, and it takes me longer to round up all the tools and get set up, than it does to actually do the swap.
Go for it, you'll enjoy doing it, especially if you like to "tinker" with stuff.
I bought the action wrench and barrel nut wrench at Midway. You'll also need a "go" gauge, but you don't need a "no go" gauge. Those are a waste of money.
If you get the tools to do it, I can walk you through it step by step, with pictures, or you can go to the savageshooters forum and read all about it yourself.
One of the best advantages to the barrel nut/floating bolt head design is the ability to swap and headspace barrels yourself, and you're missing out on that benefit.