Would the duo be worth getting repaired if it cost $175 round trip (shipping, region mod, exchange rate) on top of paying $200+ for the unit in the first place?
This is why I am thinking of dropping it as it will become too expensive.
Well, a PCE Duo is not worth $375. On the other hand, you've already paid half that and you'll only get a pittance selling it with leaky caps, so you're screwed either way.
And like I said, TGCD's are also expensive. It's just a matter of time before the caps in the CD-ROM leak and the gear breaks, so you'll have to pay for that eventually.
Three choices:
1) sell the broken Duo for $75 now. Eventually pay $175+ to fix the TGCD.
2) Keep them both. A backup system is nice. Fix the Duo, but save a little $ by skipping the region mod. Fix the TGCD later when you can afford it.
3) Sell the TGCD for a reasonable amount now while it still works. It should more than pay for the Duo repair.