I was going to get the Node 2i and stopped by my dealer to buy one. We went through the specs between the Node 2 and 2i and there wasn't anything new in the 2i that mattered to me and he had a couple of the Node 2s coming in from a trade in. I was able to pick one up for $200.
If you're going to use the analog outputs, the sound quality is purportedly better on the 2i and it has Airplay 2 (which I don't have any use for). I am running my Node 2 to an external DAC, so the "better" analog output sound quality didn't matter. If you plan to use an external DAC and don't care about Airplay 2 you might be able to get a good deal on a Node 2.
If you're going to use the analog outputs, the sound quality is purportedly better on the 2i and it has Airplay 2 (which I don't have any use for). I am running my Node 2 to an external DAC, so the "better" analog output sound quality didn't matter. If you plan to use an external DAC and don't care about Airplay 2 you might be able to get a good deal on a Node 2.