Now, don't get me wrong, I have absolutely no problem with proxy cards in casual matches. This thread is not about that specifically.
When Imperial veterans was announced, I had a buddy that wanted to play me with the defender upgrades. I was quite reticent*. Basically, my argument was that:
1. I don't follow or research unreleased cards very much. There's enough to learn about this game as it is.
2. There may be other cards released in the meantime that may be hard counters, or synergise in my lists better against that type of list. These cards may not have even been spoiled yet.
3. The above points give him an unfair advantage.
What are your thoughts on this?
*(It wasn't a big deal with him either. We played a "standard game".)