I think that this might be fairly simple, unless you have Windows 10, that is.
If you have Win 10, just keep on flying whatever you have. Windows 10 has thrown a monkey wrench into the mix with a lot of necessary drivers missing.
Likewise, if someone has a computer that is very old. Graduating to a newer class of flight sim could be too expensive.
For those that already have
Prepar3d V2.x, the choice is much harder.
Prepar3d V3 is better in many small ways than
V2.x.
But if you
are not having "out of memory" errors now, you can probably wait for the next full number update,
V4.
I, mostly, fly low and slow. I almost never run out of memory. So even though I have no memory problems, I've bought it because at some point it will become something far better than FSX.
People who do fly the big birds high, fast, and over many major cities do have problems. In that respect,
Prepar3d V3 is a major improvement.
It hasn't completely fixed the problem, but many high flyers say that it's much, much better with few if any OOMs.
For anyone who
does not have
Prepar3d V2.x, and who think that they can learn something from Prepar3d, should buy
Prepar3d V.3.
The many small tweaks have made it a significant improvement on FSX.
OK, Keith. Your turn."Being able to access the various crucial settings such as the scenery library..."Installing scenery in the scenery library is MUCH better than it was with FSX.
First, there's no Mickey Mouse routine. You click on it and hit OK.
Second, if there is an error in the scenery library, V3 will ask you if you want to simply delete it. YOU don't have to track it down.
On the other hand, if someone didn't create the
aircraft.cfg file properly you'll receive a notice about it. If that
aircraft.cfg causes you any problems this can be beneficial. It it doesn't cause errors, this can become annoying.
"....display, general, sound & controls.""To be able to make changes to them without having to start a flight before hand."Just about any setting, scenery, or aircraft, can be changed during a flight without having to restart the flight. Easy as pie.
These settings are mostly different, rather than better. At least from the
V2.x standpoint.
In order
The HDR is a great improvement, but one set, you'll probably never change it.






One big change is calibration. You're supposed to do it in ->
Control Panel\Hardware and Sound\Devices and Printers.
The only problem is that for some people, not all Saitek equipment is showing there.
My Saitek throttle, for one, isn't there. Luckily for me, I can calibrate it in FSUIPC. But how many people will buy FSUIPC just for that?



More weather settings under Customize
"Going straight back to the default Langley AFB/F-22 Raptor scenario whenever I accidentally have a "hard landing/crash" (I know you can set up & save a scenario but I'm the kinda guy that changes things around on a whim!)"I can't think of anything worse, for me, than starting a flight sim in a default flight, and then having to make
individual changes one after another while in the default flight.
I
ALWAYS start in the
Scenario Setup mode. It's always set to my default flight, and I can make any, or all, changes without starting a flight.

In the end, my viewpoint is that
Prepar3d V2.x was a bit better than
FSX. Enough so that I had moved completely over to
P3d.
As far as comparing
Prepar3d V2.x and
Prepar3d V3, I have to say that most of the "improvements" will affect very few people.
However,
Prepar3d V3,
in total, is a enough of an improvement over
FSX, to make it worthwhile buying.
But unless you like being a pioneer, you may want to wait a while until the software companies catch up.The old software
will usually work. Programs that "self install" will not work, but if you can manually install it, it has a good chance of working.
Think of it as when people manually installed FS9 sofware into FSX. Sometimes yes, sometimes no.
Now compare that to trying to use FSX aircraft or scenery in
X-Plane 10. Ain't gona work.