I have a Fender Tele, made in Korea, either a neck thru or set neck guitar. It's painted, so I don't know. Sustain is nice, but it really does not matter these days. You can get compression/sustain pedals, there is all kinds of software available, and a decent overdrive/fuzz unit or onboard electronics can give you essentially infinate sustain. Wood matters, and generally I think my Gibsons have better sustain than my Fenders, but it depends on the guitar, the wood, the pickup, the amp... and how well you can hold a note. here's a pic:
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