Any Blaze package + YouTube addon (2990LKR + 195LKRx4 +Tax/300Mbps/150Mbps) : 5270LKR for 162GB (82GB Anytime + 80GB Youtube Addon)
Any Blaze Package: 2,990.00LKR
Youth Package (7xFun): 780.00LKR (195.00LKR per week x 4 weeks)
Subtotal (Internet): 3,770.00LKR
Taxes on Internet (23.50%): 885.95LKR
Total for Internet: 4,655.95LKR
Landline Rental: 430.00LKR
Taxes on Voice (42.02%): 180.69LKR
Total for Landline: 610.69LKR
Total Estimated Monthly Bill: 5,266.64LKR
Price per GB: 5270LKR/162GB = 33LKR/GB
Unlimited Home package (5990LKR + Tax/100Mbps/50Mbps) for unlimited data
Base Package Price: Rs. 5,990.00
Taxes on Internet (23.50%): Rs. 1,407.65
Total Estimated Monthly Bill: Rs. 7,397.65
Price per GB: 7400LKR/232GB = 32LKR/GB
tl;dr : Save money. Go unlimited.