It was easier to buy champions with IP than it is with BE because you got IP after every game and could buy boosts.
BE is riots way of forcing people to buy RP.
The problem during the IP era was the fact that you had to constantly decide between buying a new champion, or buying runes (quints, marks, glyphs), or buying a new rune page, and every single feature in the game.
You could unlock every champion that was out in a few months of playing.. but then you'd be stuck with under-performing champions because you didn't have the right runes and it was a grind to get them.
I do like the new loot system... but I hate how slow it is to gain BE and Shards.
However... I do want to point out one thing about your argument.
- Champions are affordable. You don't need to be constantly buying new ones. Take time to practice the ones you have, you can not possibly ever master a single champion in the time it takes to get the BE to buy the next one.
I will agree it is difficult to get enough BE to buy new champs without the shards in a reasonable period of time.
I've played 7 years consecutively and only missed a short period of time in seasons 1-2. I still have 12 champs left to buy...
(In fairness I did take a few short breaks).
The only reason I don't have all the champions is because I spent my IP by buying a champion, then a new runepage, then full sets of runes for that champ. Later I entirely devoted my IP to runes and pages only. I had every rune there was when the system switched.
When they did the refunds, I didn't spend my BE entirely on champions, but I did grab A LOT of them.
Currently, I have 12 left to buy and I'm 300 BE away from the next. I have 4 4800 champs left and the rest are 6300 champs. I don't really care for the ones left other than being able to have them all. It takes about two weeks to get the champs without a shard for me.
- You really don't need to have a bunch of rune pages now that the rune system changed.. most runes are very versatile and you'd be surprised what some runes can do for champions that you'd never expect. However... even just a single extra rune page is worth the investment.
I do think that riot should probably offer a few extra premade runepages.
I have mixed feelings about the new runes. I like not having to grind out runes and having equal footing as everyone else.... however after the system changed... I had to change my ENTIRE playstyle because champions and builds I feel in love with no longer worked.
One of my favorite runepages was entirely ATTACK SPEED and I could do things like AD Braum Top because after one or two as items I'd be at 2.5 Attack Speed and could hybrid build AD and Tank.
I had a few other pages as well that allowed me to take a champ you would never dream could play say top or mid and completely wreck.
Players also had to go out of their way to look at what you were building in runes.. so there was less Rage-quitting because you didn't take their favorite rune on your champ. They still RQ... but it wasn't over your build.