Whales making walls, whales breaking walls. I'm out of words!
You think these are whales??

Remember, remember, the 25th of.. June. >BTC90,000 traded in <4 hours.
https://bitcointalk.org/index.php?topic=178336.19200
Price was much lower then, so raw coin value will maybe never be this high again.
Still, we're seeing 10k coin volume on a good day right now, but in early '14 we saw 70k on the highest volume day. I'd like to see that kind of volume again eventually.
Stamp?
More exchanges and people buy off-exchange now. So what's a new healthy volume?
One of the most important questions right now. I'm fiddling around with some crude methods to find a way to relate volume (change) and price (change), but it's too early to really do something with it.
Intuition says we should see easily twice our volume now as we leave the bear market behind... I'd say, a month where each day is 10k volume, and some see 20k, would be very bullish. (bitstamp volume alone in this example)