>>7904111How much something is worth is entirely subjective.
However, they are much more simple than an average RD, bare bones on the accessories and limited articulation plus way out of scale to the Gundam RD offerings.
They make nice figures for a desk or a younger sibling but RD would be best if you want something more 'collector'
You can find some reviews of them here -
http://blog.livedoor.jp/hacchaka/archives/cat_50057636.html 