I would buy a MBA if they were cheaper. Right now the cost doesn't justify my usage case which is surfing the net. This would be a great way for me to replace both my iPad 2 and 2009 Mac Mini.
Granted I have to see if the cost is worth it but if sacrificing ports lowers the price point then I'm in. If not then I'll have to reconsider my options.
Thing is, sacrificing ports will not lower the price to the point where this upcoming MBA-like laptop costs as much as an iPad, so this new MBA is likely somewhere in between/replacing low-end MBAs (which puts us somewhere between $500 and $1k).