I sent a case of once-fired off to Blue Ridge Brass, they cleaned, re-sized, trimmed, and de-crimped it for a couple of cents per case. Their backlog waxes and wanes, but they're generally pretty quick, and it's super-convenient.
The other part is to have a system for your in-house processing. I used to reload a few k per year for competitions, and the point was that if you're squared away on the brass side it's not awful.
1. clean
2. re-size. Before you run it through the die, look at the primer pocket - it's easy to tell if it's got a crimp at this point
- crimped (which is once-fired) goes to one bucket
- the rest goes to another
3. When there is enough brass needing de-crimping, do a de-crimping run, it then goes into the crimpless bucket
4. length-check, inspect, sort by:
- needs trim
- doesn't need trim
- "questionable" (been re-loaded a bunch of times or whatever, it's a headstamp with potential issues) - this is "lost brass" match brass for hose-em stages
5. Once there is enough brass needing trim, fire up the trimmer (I have a bunch), trim it, and that brass goes in with the "doesn't need trim"
6. Final clean brass
7. Into the ready-to-load crate
If you keep everything labeled it's not a huge time sink - it's a matter of optimizing the process. Would a Dillon 1050 with automatic de-crimp and trim be better? For sure, except for the last-load brass sorting, and the need to inspect.
ETA: moral of the story is for bottle-necked brass is to have ready brass on hand - at that point there isn't a huge difference in speed in loading, and cranking out 500 pistol, 500 75gr match and 500 55gr for a weekend of fun isn't a lot of work