If I were to get a V3i one of the main reasons would be the polar plot and the expanded conductive range compared to the Etrac. One thing that bugs me about Etrac is how it is hard to tell the difference between a copper penny and a clad dime. I don't know if polar plot can speed up your decision making? But I hope it would be helpful in differentiating shallow gold rings from slaw and tabs. Deep signals are more ear training. Every time I get pumped on getting a V3i, I read a bunch of negative reviews and back off. On the other hand, I read a lot of great things about the Etrac, and after using it for about 300 hours I would say it is the least producing detector that I have ever used. Very little silver and no gold so far. Maybe I just started hitting tougher hunting grounds since my purchase? I think I have Etrac down pretty good, but I am always considering the V3i swap, especially since I prefer hunting jewelry.