About 2 years and 6000 miles ago I built up a wheel using the original rim off my '83 Miyata (Araya 27 x 1 1/4 hp) with a Sturmey XRF5-W hub and cheep wheelsmith spokes. Bought bike from original owner, tires had been replaced once in 26 years.
No problems UNTIL 3 months when ago bumped by a car, broke a spoke on back wheel. Replaced with a stainless one.
A week ago another broken spoke on the back, easily replaced.
Now 2 weeks from a planned 3 day self contained tour, while riding/training with 22+ lbs on the front rack, I break 2 more spokes on the back...
Okay, maybe time to get professional help (for the bike) and I'm told "I'd suggest a new rim and all new spokes". OK, maybe time to do the 650 conversion.... 650A that is.