>>9095942I collect for the same reasons this
>>9095962 anon mentioned. I would like to add there are tons of 1:18th lines you can mix and you can also use larger 1/12 figures/beasts with your 1/18th figures. For example, a 1/12th wolf can be a dire wolf for your smaller figures.
I would recommend just getting one or two figures that you really like to see if 1/18th scale is your thing. You can also ask anons here for pics of specific figures that you may be interested in.