rm3000, i assume around NT$30,000 for 6 days. Each day is NT$5,000. That is the standard price if:-
1. you are travelling outside of taipei and ur driver is from taipei
2. you get taipei driver to travel within taipei itself price range from NT$2,500 - 3,500 per day depending on location/duration
3. you are travelling within taipei and ur driver is not from taipei

if u have a group of 4, its best to travel with driver. u save time. and travel in comfort. dont have to worry about luggages. 

8 days trip. same like me 
u can visit many places in 8 days time. plan accordingly.
u can use my itinerary as ur reference. still depends on what is ur priority visiting taiwan 
that is over price already 
i got quote for whole day jiufen/jinguahsi/shifen/pingxi/ if have time can end in keelung night market and back to taipei itself. max is 3000-3500 depend on what time u start and end. price can range from 2500-3500 max. 4000 is a bit high?? 

today i get 10.39
very low mah?

i saw some places 10.60 and above --- 10.80,10.90 

Another thing sport shoe in Taiwan is much more cheaper than Malaysia, saw a pair of Adidas sport shoe they are selling around TWD3250 and I saw the same shoe in KL cost RM465. I'm so regret I never get the shoe there......

I cant really remember where I see the shoe, but quite a lot of place do sell sport shoe such as Shilin Night market (I mean the shop there) and price do vary from shop to shop. Check it out and it is really worth the price there.

If you were at XMD, remember go eat Sushi Express! If you are sushi lover! Food there fresh!! TDW30 per plate only!