No one, really. But, the ad got me to look around on their web site, so I suppose that it worked.

Frankly, I'd rather roll my own dev box, thank you very much.

They did that to grab attention ("Wow, a Sun for $900?"), but additional memory is not outrageously expensive, as it is for, say, Macs.

I just upgraded the memory in my macbook pro and I bought the exact same kind I would've bought for a non-Mac laptop. Its my first mac, so I'm no expert on whether it was more expensive before, but its definitely not the case now.

Okay, but if you price out a system on store.apple.com, memory upgrades are roughly twice as much as on Sun's online store.