ccs
41st lv DM
in what ways are 3.5 and 3rd better than 5th?
If you like lots of options then 3/3.5/Pathfinder v1 are the systems for you. Overall there's:
*Dozens of classes.
*Nearly any race can be made into a character race.
*About 3x as many skills, rules for them all, & you assign pts to them as you level - so you end up customizing wich skills you have & how good you are at each (though many peoples skill lists end up looking very similar)
*Upwards of 1000+ feats
*Alot more spells
*Many many times more monsters
*Defined rules for how to make & buy magic items.
*There's ALOT of support material written for these systems - settings, region books, adventures, etc
*Working psionics systems (I personally don't count that as a +, but if it floats your boat....)
*Direct PDF support for Pathfinder. Whatever Paizo prints you can get from them in PDF form without jumping through hoops.
IMO, between 3/3.5/PFv1? There's almost nothing you can do in 3/3.5 that you can't do at least as well with PF.
Can you convert monsters, adventures, various rules from 3x/PF1 into 5e? Sure. I do it all the time in our Thur game.
But if you've got a group willing to play 3x/PF you don't have to go to that effort.
and would it be worth it for me to learn the older versions?
If you've got other people willing to play it, absolutely.
If you're thinking of converting something (say an adventure or monsters) from it into 5e then I'd recommend being familiar with the PHB/DMG/MM for 3.5 or the Core Rulebook + Bestiary I for PF. It'll make the task easier if you know what's being talked about rulewise.
For ex: I have a friend who ran a module series from AD&D 1e for our 5e game. He'd never read or played 1e, so he had a tough time translating the stat blocks (especially the AC & Saves). I had to sit down & translate stuff for him.
As to why people still play previous editions?
*They like them. Or they like the current system less.
A perfect example of this is everything vs 4e. The vast majority of gamers simply didn't (and still don't) like 4e. At the time they wanted more 3x. But that's not what WoTC decided to try & sell.... It's WHY Pathfinder exists & has sold so well. Others simply went & played something else altogether. And after 4 years of not making the $ they'd hoped to, WoTC retooled the game into 5e - wich is doing much much better.
*$ - Unless you've pirated the PDFs, you could have spent ALOT of $ on books. Many people aren't real fond of flushing that kind of investment.
*The people they play games with are more willing to play ____ than they are 5e.
Myself? I prefer AD&D 1e, Pathfinder v1, & 5e. I'll happily play any of those 3.
Right now, of the two groups I play with, one prefers PFv1 & the other 5e.