Microsoft increased prices for all of its Surface PCs this week, with most models priced hundreds of dollars higher than they were when launching. Windows Central highlighted the increases, which now see Microsoft's mid-range models priced above $1,000 and flagship models priced starting at $1,500. A Microsoft spokesperson said the price increase was due to "recent increases in memory and component costs".
Ultimate let you change languages, but cost more than Pro
Right, that edition is listed after enterprise on Wikipedia so my eyes just completely bounced over the fact it could be upgraded to from Pro.