Any iron you might find in Fredericksburg is gonna be WAY over-priced! As will any other "antiques" you might find. Don't get me wrong, I LOVE Fredericksburg! We honeymooned there, a little over a year ago. And, we had a blast.
So many places to go and things to see. Loved cruising all the little shops in town. But, my scottish decent prevented me from many purchases in those shops :P Of course, there are always exceptions... not often though!
I like to wander out of town and hit the smaller "burgs". More authentic and reasonably priced stuff to be found. Plus, the added benefit of a road trip in the gorgeous Texas Hill Country.