I'm kind of in the same boat. I recently acquired an SE Swamp Ash Special. I was glad to get it but wasn't all that enamored with it. I changed the pickups and altered the wiring. Now it's much better than it was when it was stock. The neck, however, is something that I'm still not crazy about. It's a wide thin carve and I've never been crazy about those. I own several Telecasters. I was always a huge fan of Albert Lee, Danny Gatton, Jerry Donahue, Brent Mason, and other hot Tele players. Then I got into David Grissom. I gravitate to the neck of my Broadcaster RI much more than my SE SAS.
All that said, for a while now, my dream guitar has been a core DGT, specifically a gold top with moons. I was glad to see an SE version developed. I have watched video after video of DGT core models A/B'd with the SE DGTs, even by Mr. Grissom. Through my speakers, I can't really hear a discerning difference. I have to admit though, that a couple of things I see that are significant factors for me are the switch/vol/tone/carves and the violin vs shallow violin carve. Those are factors about the core model that I love. I cruise around Reverb and see them offered but I can't justify the $3k and up prices. I'm not saying they're not worth it; I just can't justify it. Then, I think about my Broadcaster RI vs my MIM Telecasters; and as good as the MIM Telecasters are, there is a considerable difference in quality.
Then there is the new DGT 15 amp. Yeah, that's a dream amp for me. As others have suggested, why not get the SE DGT and the DGT 15 amp both? Hmmmm, that's a thought indeed.....