I'm new to dbl crown forks, but also have an older 888. I got them on a used fr bike costing less than a new fork. Nothing even wrong with the bike- norco shore2, 8" elixir brakes, isis bb, fox, marz, azoniz, sram9, etc. Real strong frame (that is now hanging on the wall- like a pretty picture lol)
I've drooled over the new forks, and I think the question is a good one <rebuild?>
That comes down to the consideration of <are they built like they used to be> and <money>
I'm pretty sure suspension is still evolving in a positive direction- lighter weight& more travel, while retaining or improving strength. So it just comes down to money.
For me, the older 170mm heavy 888's are a great value, and don't see (in my case) any reason to even crack them open yet, much less spend all that money on a brand new set. They're smooth, adust fully, and don't leak.
If I were to rebuild/service, and had an inkling of spending more than 200 for a 'pro' job, I'd be looking on utube and doing it myself. Correct me if I'm wrong, it's usually just seals and fresh oil; and possibly changing a spring or bushing is about the only thing possible to do in addition?
Is there any possibility of that for you exe? Because I would imagine maybe 400$ for the 'pro' rebuild.
Also, how are they acting that makes you think of servicing? Choppy, leaking, loss of rebound adjust?
Something else to think about, for a brand new fork, the dnm usd8 seems pretty nice for only 400. Not sure if I love/hate the inverted design though. Ebay the used marz for 200-400 and buy the new one.