# The ARRL handbook updates yearly. Is it useful to buy it every year?

There seem to be updates to the ARRL handbook every year, but I don't know if the updates are significant or not. Is the yearly update minor, and buying a new one every 10 years would be enough to avoid missing something important, or is the year-to-year content so different that I should consider buying each year's volume?

Technology changes and ham radio follows along (or leads!), so I think one every 5 years is probably fine. I have the last 15 years on my shelf, except for the last two years. That's because I don't buy them new. As much as I like them, $50 a pop is just too big a chunk of my radio budget this year. But, I probably only spent around US\$100 on the 13 volumes I have by buying them used on eBay and at hamfests. For instance, the last copy of the 2010 Handbook that sold on eBay went for US\$5.00 and the one that's up right now is at US\$0.99 with no bidders.