Two questions for you:
Why an 8 piece rod?
What's your target species/size flies you intend on throwing with this rod?
Your quest for a 6-8 piece travel rod will be limiting but here are two options other than the Orvis to consider:
LL Bean Double L comes in 8 pieces and with Bean's legendary guarantee.
Double L Classic Travel Series Fly Rod, 7-9 Wt.: Rods | Free Shipping at L.L.Bean
Or Cabelas has a 6 piece fly rod which I *think* is warrantied for one year. A bunch of folks buy Cabelas rods on the forum and seem to be happy enough with them. Maybe they can confirm the warranty.
Cabela's Stowaway 6 Fly Rods : Cabela's