1) Purists that identify more with the LC
2) Less examples available on the used market
I don't agree that AHC is more expensive to maintain and anecdotal information on these boards does not support that. On the contrary, it's proven exceptionally durable, moreso than even the system on the 100-series with many examples going will into 200k+ miles with nothing than onboard fluid flushes as maintenance. Beyond that, replacement globes and hydraulic struts are cheap to replace. Contrast that with aftermarket coilovers with lots of supporting information on the boards showing that they are barely validated by the aftermarket with many defects, needing an uninstall and sent in rebuild every 30-60k miles, and cost thousands to replace as a system.
The LX represents a rather large value proposition when you consider its features above and beyond the LC. Note late model year LCs got some of these as trickle down. Copied from
here
LX features:
1) Substantially more sound deadening
2) Powered rear hatch for open/close
3) Soft open rear lower tailgate, with power latching
4) Surround camera system
5) Ventilated/Heated front row
6) Mark Levinson
Reference (only other model to get the Reference system is the LS) w/surround
7) Power side view mirrors with auto-fold (I believe later LC's go this)
8) AHC - AVS, lift on demand, auto and multi-step damping, anti-dive/roll/squat, leveling, etc., etc.
9) AHC underbody armor
10) Shorter roof rack (LC has a longer roof rack with 3 supports per side)
11) Steering headlights (AFS)
12) Projector headlights ('16+ LCs got this)
13)
Headlight washers
14)
Storage in rear seat armrest
15) Power slide rear seats
16) Second row storage on front seatbacks is a panel vs net
17) 14-way adjustable driver seat vs 10-way LC (passenger 12-way vs 8-way)
18) Power stowage for 3rd row seat
19) All windows down by holding remote door open button for 3+ seconds (not sure Toyota's have this?)
20) Substantial Lexus key fob (LC uses same one as corolla)
21) Fade-To-Off interior lighting (I believe LC got this in 2014?)
22) Puddle and side step lights
23) Door sil lighting
24) Interior ambient lighting
25) Additional trunk side light and open tailgate lighting
26) +2hp / +2tq (requires 91 octane, LC is 87 octane)
27)
More luxurious interior appointments