I have had little need for money so far and while I have had some need for crafting materials, I havn't needed it that much either. I mostly deconstruct my stuff since I can just do that anywhere and continue on with missions. Is there any reason to sell gear? Should I sell or deconstruct my gear that I no longer want?
It is best to dismantle everything as much as possible in order to max out all of the crafting components you have. You can craft some really useful mods and gear that make it much better than having to pay for stuff, which is never as good. If you are finding that you get the warning message to say that your inventory is full and you wont be able to claim the resources that you dismantle, then you can start selling the stuff.