"Worth it" is so subjective, I just don't even want to touch it. Whatever is "worth it" to someone, is worth it to them and that's good enough for me.
As far as custom vs. going full monte on a 700. For myself, what I have on hand has usually been a deciding factor. If I have to buy a 700 just for a project, I've usually just bought a full custom instead. But, I often had a 700 around that had been picked up on sale or on deals just to be future organ donors, so I've built on them more often than full customs.
Selling... I sold off the majority of my rifles some years back. Don't have that many left. But I quickly found that the only way to get anything close to what I thought they were worth, was to part them out. Sold them as parts and pieces, not whole rifles. And got a good bit more out of them that way than I would have selling them whole.
For sure, not many will pay a premium for a "blue printed" 700 action vs. an unmolested 700. In fact, if I don't know the guy that did the blue printing, I'd rather have an unmolested one for the same price. There's blue printing, and then there's blue printing, after all. Kind of like buying a used Jeep that has already been lifted. I couldn't be bothered to pee on most lift kits that get installed, so to me, one with a lift already on it just looks like extra hassle and expense getting rid of the crappy lift so I can build it right. I look at 700's the same way... If you're local guy I've never heard of has "blue printed" it, I don't want it.
But... I found that there are enough guys out there willing to pay a premium for a blue printed 700 from a known 'smith, that there really wasn't a spit worth of difference between the full customs and the Tannel built 700's on resale discounting. Very much a niche market situation. But, my experience was, there are enough guys out there that appreciate the fact it takes over a year of waiting to get one from Greg, they are very much willing to pay a premium on a used one to get it right now.
- DAA