Loadmaster
As stated the main differences are the extra stations and the ability to load larger rifle/pistol versus small rifle (223 etc)/pistol. I had looked into the 1000 but opted for the Loadmaster as I like to crimp in a different stage (454 casull reloader), reload large rifle, and liked the rugged appearance of the press. There are many mixed results on the Loadmaster and there are tons of forums concerning the topic. Once set up properly though the Loadmaster performs without a hitch, but one needs to be patient during setup and make sure everything is adjusted properly. If one chooses a Loadmaster I highly recommend the website: Loadmaster Zone @
http://loadmastervideos.com/
You will immediately see that the factory directions are less than desirable so having videos helps tremendously.
The videos eliminated errors as well as saves time and parts, in fact I have yet to ruin a single part even the plastic ones that people are so concerned about. Yes, I did mention there are plastic parts and if you look at the Dillon or Hornady presses they all have plastic too. I see plastic as a good thing on the Loadmaster as these parts are very inexpensive $1 and help save the more expensive ones (simply have spares so if you the operator accidentally messes up you are not left without ammo).
I took a good 3 hours from mounting, to making the case ejector modification (Loadmaster Zone video), to lubing, to running dry runs before I started to reload single rounds. Reloading about 50 single rounds to fully see how the press ran I then move to full progressive. By the second reloading session I was off and going with out any setbacks.
Progressive presses in general: AGAIN BE PATIENT during setup as all progressive presses have problems at first, but more so with Lee progressives as I don't think lee presses leave the factory with such watchful eyes as Dillon or Hornady and I believe this is why the Loadmaster and Pro 1000 receive such bad reviews. People expect to pull these Lee machines from the box and have them index and feed primers correctly with no adjustments and I will tell you, this is not probable.
I also suggest if one decides Loadmaster that you size at the same time you prime (station 2) as this keeps the brass in place while priming. A good tip for indexing problems deals with the case ejector. Look on Loadmaster zone on the case ejector modification indexing problems as this eliminated all my indexing problems.
Here is the truth! I am a cost efficient person and will look towards finding products that are reliable at a better price. I was a Dillon owner by family trend, father was a Dillon man, and although the Dillon 650 is a nicer finished machine and had fewer issues out of the box it cost 3 times as much and caliber changes were much more expensive than a lee. I sold the 650 to a Dillon nut and now own two Loadmasters and still have not reached the cost of the Dillon. I did not have the case feeder with the Dillon as it would cost more than an entire lee loadmaster kit so again the Loadmaster prevails as it comes with this. I actually bought my loadmasters as rebuilt or reconditioned for $175 shipped directly from Lee Precision. They were both kits so I had everything I needed except the extra die for crimping and the universal decaping die (used in station 1). I could actually buy another Loadmaster and would be getting closer in cost to the Dillon 650 with all the caliber changes.
IMO the Loadmaster is a better machine because of my needs. One of my friends has a Pro 1000 and likes his too (reloads pistol only), but they all must be setup correctly. The Pro 1000 was the machine that tempted me to buy the loadmaster and glad I am as I now have one setup for small primers and the other setup for large primers. They both are running very well with no problems.