Yah, agreed candy bar and slider is the main different, that's why Nokia launched 2 almost similiar features phone with less price different.
Think back .. Ermm... When you hold these 2 phones on your hand, let's say forget about the brand and model. Which phone looks more like a RM2800 phone. Haha..
Just imagine one day Dell and iMAC offer same price same features of their laptop.. erm, which one do you think it looks more elegant, worth the price...
Tell me who will use all the function in N95 8GB daily.. even i strongly like N95 8GB.
WIFI: Do you use it to pop all your forward leisure mails (not important mail) in starbuck/WIFI area everyday?
GPS: Do you really need it that much in malaysia town area? Do you have so many chance to carry this GPS machine and go oversea for travelling and business.
HSDPA: Do you really know what is it by comparing to 3G? Everyone only know it is faster than 3G

Need to pay
3G: Do you use video call that much? Do you tele conferencing everytime? Need to pay
A2DP: I think people start to know how to use it perhaps
I can tell you that nowaday most of the high end handphone features are for future usage in country such as Malaysia. I read one article before by comparing how asian and european utilize the built in features of a high end phone... No offence, most of the people please don't waste the time to compare that much on the high end feature, your final decision will always made based on 2 things only haahahaha! Which are "Design" and "Camera".
Camera is not the most not important point to be considered in a phone when you are starting to understand how to fully utilize the whole phone. Other things are more interesting.