The average price of Boon Tong Kee chicken is quite
standard:
1. 12 bucks for half a chicken
2. 22 bucks for a whole chicken
3. 6-8 bucks for vegetables or inerts and intestines
Customers who patronise the place aren't usually there for a
drumstick meal...they usually whack whole chickens.
By the way, the price list above is for the main branch at
balastier road. The outlets at upper bukit timah and river valley
are a little more costly (add 1-2 bucks to the price list above)
However, the service is generally ok and food quality so far is
gauranteed 
However, another franchise - Wee Nam Kee, is not bad either. Price
range is comparable. Got one opposite the novena church that opens
until quite late...past 1130pm and another outlet along thomson
road near the sweet secrets shop.
If u're looking for exotic taste, u can try the kampong chicken
rice opposite the wee nam kee at thomson. Affectionately called
"Chicken House", the meat is lean and tasty, with very little oil
used. They serve cold crabs too...huge crowds ard 6-730pm
daily.
Oh by the way, "loy kee best" chicken rice is very ordinary
...quite a common sight in food courts.