What's the deal with rings in Skyrim?

I've been collecting a lot of valuable rings that I'd like to just sell, but I'm not sure if there's value in holding onto some of them.

This is what I understand:

• You can only have one ring equipped at a time
• You can enchant rings just like armor and weapons

Are all rings created equal for the purposes of enchanting? Or are certain combinations of gems and metals better to keep for enchanting rather than selling?

Solution 1:

You can enchant rings to increase the overall value of them while also increasing your enchanting skill. The better the metals, the better the prices too. However enchantments are the same no matter the materials of the rings (enchantments are only affected by the soul gem used and your skill, you could use potions too).

I also find it crappy you can only wear one ring, but thinking about it, being able to use rings on every finger would make the player too overpowered.

Also, there are unique rings if you are a collector. :)