Sub-Ether's chart of the day.
http://statoshi.info/#/dashboard/file/default.json?panelId=5&fullscreen&edit&from=1399556468856&to=1431092468872Moore's law is not keeping up with the memory usage as the unspent transaction memory requirement has doubled in 1 year and the cost of memory has only gone down by 20% so once again
the scaling problems of bitcoin are showing themselves.

Read more from the man himself ...
http://gavinandresen.ninja/utxo-uhohToday, the UTXO database is about 650MiB on disk, 4GB when decompressed into memory. DRAM costs about $10 per GB, so you need to spend about $40 on memory if you want absolute fastest access to the UTXO. Not a big deal....
'Assuming the UTXO set continues to double and RAM prices continue to drop 20% per year, next year youll have to spend about $64. Ten years from now, over $4,000
'Looks like there's a fork planned to solve this BTC problem at 2016.