How much does weight matter?

I put a quick 5 miles on the Stumpjumper today. About 4.5 miles into the ride I felt a vibration in the bike, it got bad enough I pulled my headphone out to hear a loud rubbing like the tire was making contact with the chain stay.

I knew I needed to have the wheels trued but I didn't think they were that far out of alignment. I flipped the bike over in the middle of the trail and realized the zip tie holding my brake line in place broke and the brake line was catching the nevegals.

I pulled the slack out of that area and rode to the truck where I used some Velcro to attach the line to the chain stay. I noticed that my wheel was really close to one side of the chain stay and had a bit of a wobble so I decided to call it a day and drop the bike off at the shop.

Now when it comes to biking, I love to wrench on my own bikes, but I try to stay away from derailleurs and wheels cause I tend to make the problem worse every time.

Out of curiosity and realizing this was the first time my bike had been to the shop with only a little mud on it as opposed to being covered in it, I asked "How much do you think that weighs?" Now for a bike shop I'm sure that question is gold because if I don't like the number I spend hundreds of dollars reducing the weight and maybe get 2lbs out of the 1000 bucks into it.

Luckily for me, I was aiming for sub 30lbs, I had read on the specialized forums that Large Stumpy FSR Experts are in the range of 27-28lbs. I half expected to see 27.5, especially after I went tubeless, but I was not too shocked when the scale read 29lbs. Luckily that was within my range and I know nothing short of thousands of dollars will get me much lower.

Plus the bike is a "trail" bike not a race bike, I use it as a trail bike, more so, I use it as an all mountain bike. I beat the living hell out of it, bomb the downhills and pedal the uphills, what's the use of shaving 2-3lbs with new wheels, bars, stem, seat, seat post, pedals, cranks or whatever else I would have to change to lose the weight? For my riding there is no benefit to shaving the weight.

Thus I grinned and said great when I saw the scale, I dropped the bike off, asked for the wheel true, and to their demise went on my way.

Side Note, the bike shop I dropped it off at is an extremely professional shop with the best of employees, by no means are they dicks that just try and sell you a bunch of shit you don't need.