I tend to pick a few out that are not high value at all just because I like the look of them, but the rest of the pile I would like to remove all the results from $15 VF and lower when searching the world coin guide at NGC, thus leaving me with an acceptable valuation with coins that are high grade.
VF is the grade price I am focussing on, any amounts higher or lower will still be listed if the VF value is higher than around $15.
if the coin isn't in the list then it isn't worth the time researching when value is the primary reason. NGC does not offer that custom results system, there is an exceedingly high amount of very low valuation coins mixed in with the results which makes the process tedious sometimes.
So I have taken it upon myself to create custom set World Coin catalogue price guide, I am keeping it in US $ because I have got used to it over the last few months plus it helps fellow collectors over the pond.
It is going to be a huge task and will probably take me a few months to complete, I started it a few days ago and have around 15 countries well on their way, here is an example of some of them as a work in progress.




I have begun with coin results that are around $15 for a VF, some of the Australian results are lower due to the fact the EF is a huge leap higher. all of them will be edited towards the end when I settle on a lowest amount for a VF.
It has helped me a lot already even though I only have a few countries listed.
Once it is in a beta stage I will grab a domain name and get it online incorporated in a website I will build to host only this, It is moving along pretty fast so shouldn't take me too long hopefully. It is of great use to me and hopefully others can benefit from it as well.