quick fact: $1 USD weighs 1 gram
I plan on getting a new frame in the next year so I'm stocking up on better components in the meantime. Although 1.5 lbs wouldn't be a big percentage of the weight on an old cromo bike, it's parts I'll have to buy eventually and when they're on something nicer and hopefully lighter it will make a bigger difference. Btw I have serfas seca rss on it right now which are probably as light as I can go and still keep them reliable on flat-hazard streets. iirc they're about 230g apiece
edit: 208g according to weight weenies