Ideal loaded backpack weight for 2박3일?

Question to the experts:
What is the ideal backpack weight for 2 nights 3 days trip?

I understand that the lighter it is, it will be better, but there is always fine balance between going ultra light versus $$$$ invested. 

Here's a summary of the weight of my current backpack:  the numbers are slightly off, but the total weight is running at 34.1 lbs (not 33.89 lbs listed) on my bike scale which includes bear canister, food, water and rain gears. 

The current weight will go up slightly as I add in few food items that are not yet included.  Additionally optional gear items such as following are not included in the total weight as well.

• cell phone - 7.7 oz
• camera - 6.9 oz
• GPS receiver - 6.1 oz
• music player - 1.7 oz
• battery charger - 11.1 oz
• fishing items - not weighed yet
  

Pack Weight Summary		Weight
The Big Three	Subtotal	13.53
Clothing Packed	Subtotal	2.89
Cooking & Drinking	Subtotal	2.41
Survival & Hygiene	Subtotal	1.10
Hygiene	Subtotal	0.81
Items Worn or Carried	Subtotal	na
	BASE WEIGHT	20.74
Food	Day 1	1.16
Food	Day 2	1.00
Food	Day 3	0.68
Water	100 oz (0.065 lbs per ounce)	6.50
Stove Fuel	4 oz isobutane	0.25
	SUBTOTAL PACK WEIGHT	30.33
Part-time Gear	Subtotal	3.56
	TOTAL PACK WEIGHT	33.89

I wanted to hear from your experiences what your loaded backpack weight is as comparison. 

I know that personally the biggest weight savings for me is on tent, where I can shed easily ~2 lbs if I went with something like Big Agnes Fly Creek UL2, but for now I will have to do with what I have which is Big Agnes Seedhouse 2 (not SL2) where it weighs 4 lbs 8 oz.