Then I guess you really didn't want a rMBP in the first place, eh?
Well that's how it went for me.
I went a month ago to an apple store, had a look at MB models and found that I like most rMBP.
Then I went there, looking on internet about opinions and so on on macbook pro retina. I was (still I am) disappointed on MBA screen quality, that's the reason why I discarded it at first istance. At this point in time, if haswell rMBP was out on the market I surely would have bought it.
Then recently I got two guys who uses MBA daily, I had the opportunity to play with it (none uses rMBP - MBA and cMBP are instead quite common in my department) and I started to consider three things:
1) MBA screen is bad compared with rMBP, not in absolute sense although characters are small (can be fixed more or less for what I need)
2) For what I save with MBA I can buy a nice big display to use at home thus having the air form factor (way more beautiful than rMBP, but this are personal preferences) and a comfortable screen at home
3) I really need a portable computer the sooner the better
This does not mean I will buy the Air. With (finally) a sticky date, if the rMBP come out I will decide. For example with a 150€ price drop or 256GB SSD in the base model for sure I'll get rMBP, while if Apple increases prices of rMBP I'll go for the Air. If rMBP remains the same I will think on it a lot. If rMBP does not come out I'll go for the Air.
I think here in this discussion a lot of person changed mind, bought MBA or at least considered it in some moments. So I'm not special in this sense, I guess. I'm here because I hope I will make a better choice if I'm informed more.