Which titanium bike brands holds its value the best?

[jeffreng58]

Hey guys.
I'm looking for a titanium road frame to ride with a group but would like to buy a brand that has good resale value.
Background: I currently ride a old 90s Trek with old 90s parts and am the ugly duckling in the group.
This bike will be my biggest investment to date because I plan on putting aero wheels and a new groupset onto a titanium frame.
If possible I'd like to stretch my purchasing dollar on a titanium brand that holds its value over several years in case I plan on selling.
Titanium is nice because it is the most durable material besides steel on a bike and the bikes seem to hold its value longer than carbon or aluminum.
Question: Can anyone help give me tips about which brands to buy?
I've gotten mixed reviews from other forums from other people feeling something more unique like titanium/carbon seatstays from Airborne, or something made by a veteran frame maker like K Bradford, or something more common like a Lynskey for more name brand recognition will have a higher resale value.
Any advice is helpful at this point.