Oh the joys of being an early adopter!
If you sell it, you can probably make some profit, but I would only sell it if you dislike the hardware, because the software is going to keep improving, so it is too early to judge its functionality at this point.
If you can’t live with the weight or the thickness, if you need something with more processing power than the i.MX 8M Quad, more internal storage than 32GB, etc., then it makes sense to sell. Otherwise, it is worth waiting to see how much it improves before deciding whether to sell.