Current Home Value vs. Total Assessed Value- List Source

[Mike Waltman]

I've done some searching and haven't found anything on the forums so I'd figured I'd throw this out there because its an issue I'm debating on with my list source criteria.

My question isn't about what Current Home Value or Total Assessed Value are, I get the difference. What I'd like to know is what the pros and cons of using a listsource list with one criteria over the other for targeted marketing?

Is CHV just a more accurate estimate of what the home is worth? A list with CHV criteria is SIGNIFICANTLY more expensive (were talking 200-500 dollars more) than TAV. Is it worth it? 

I get a lot more leads per list with TAV (around 300-700 more). Not sure what to make of that fact in terms of quality vs quantity for targeted mailings utilizing a more expensive piece. 

It could be in my budget to pay extra for a quality list but I just need to know that its worth it, not just making it FEEL like I'm getting a better list because I shelled out a bunch more $$$$. I'm marketing for buy and hold, not wholesaling, if that makes any difference.