I guess it will sound more stable this way, too. 1000 to 2000 or even 10,000 sounds like a much more sizeable jump than 1 to 2 or 10. Also helps overcome unit bias.
I understand benefits of devaluation if there is a hyper inflation. There is no authoity that could really devaluate bitcoin price, but we could try to devaluate peception of unit here.
Having bought some BTC at lower prices, talking about BTC prices is something really exciting for me since it means money, but I think that mBTC rates is better, because I keep hearing more and more people saying or thinking that they can't afford BTC anymore now it's over $1000.
Talking about buying a few mBTC for ~$1 each sounds way more attractive than buying 0.001 BTC, which feels like buying something worthless.
So I think it's a good thing for BTC to continue to become more mainstream!