Lionfish, ask yourself a few questions:
Do you like online shopping or do you think that online shopping is very troublesome?
Will you get your daily stuff/clothes from various shops or prefer to get everything in one like those supermarket and departmental store?
These 2 questions might sound a little weird but I feel this is easier to relate than to ask you direct are you ok with the trouble from ala carte.
For people who shop online, they know that there is some admin stuff & research to carry out as compare to getting them direct from shop. For people who hate it totally, please go for package as wedding preparation is more than that.
Secondly, when it come to CNY, will you get your favourite items from various shop or just go to 1 departmental to get your clothes, accessories and shoes? Same apply to wedding, some prefer everything there for them, gowns, suits, flowers, photographer, MUA and even car so they can concentrate on other thing like banquet or their house.
However there are some who prefer to get what they really like, worry that whatever package provide not up to their standard. So they rather go through the trouble to source for each and individual detail. Some do semi package like AD package or just PS package(mainly oversea BS). Some really go down to everything even the photographer, apparel, MUA & flower for pre-wedding, this had become more and more popular.
I know of people doing that, their PS is more everyday life and courtship as compare to magazine model.
Oh ya, not forget people who find their own venue (CHIJMES, museum, parks) and caterer and event decoration.
Last but not least, discuss with your the other half. You might be excited to go for ala carte and get the best of everything. Is your better half willing to? Afterall it is his/her wedding too.