I think you will find that AKV will be on sale for quite some time and likely BLT will sell out before it does. When you say you may be buying "soon" you can probably assume that both will still be on sale through most of this year and probably well into next at least for AKV. Being able to book at 7 months depends on what and when you want. AKV is not usually difficult at 7 months but room categories like value and concierge are very often gone long before before 7 months out; also there may be limited to no availability certain times of year such as Christmas week, Easter time or most of December. BLT, on the otherhand, is likely to be more difficult than getting AKV at 7 months out a number of times of year and if you want standard or MK view at BLT it is best to own there and use the 11 month window.