PENG, I hear what you're saying about having one machine do
everything. It'll certainly cause more wear and tear on it, but unfortunately for me, I have very little space. My Sony TV stand is so foolishly constructed that I can only fit three components in there -- even though there's room for four. Receiver plus DVR plus one more. Including a rack somewhere would make things crowded indeed. So I chose to go with just one player.
Plus, since my receiver lacks HDMI, and I have no more funds for a new one with HDMI, I had to use one and only one set of multi-channel analog outputs, which forced me to make a choice: SACD and DVD-A, or the new BD audio codecs, or both. Both is preferred, hence having only one player.
With regards to the lack of wireless internet connectivity on this player, it does have two USB inputs (one in the front, one in the back). I think there's some kind of dongle one can buy to slide into a USB port and thus become part of a home network. BAM. Problem solved.
cheers,
supervij