In the last two months, Apple has released several ITunes version. Some of them are to support the new Apple products (IPhone, IPod classic and the new version of IPod), and it also fixed some security problems. From user opinion, it's a good thing to release the next version as soon as problems are detected and fixed, but it would be better if they can have some kind of automatic updates that will download the necessary files instead of downloading all of the installer. Some application have used this method, such as Firefox and Clamav. It's faster and it won't take too much time to do an update.
Lucky me i have a better connection than in the past, but still, downloading 49 MB takes time (it's bigger than Linux Kernel's source code)