|: Agro inline skates usually only have 4 wheels with even less surface contact.
It's not that simple. The surface contact area isn't the only factor. The combination of type of surface, wheel shape, hardness, diameter is important. If you change one of those parameters, the rest changes too if you want to optimize for speed.
: **And as to high airs........the Yasutoko brothers air out of a bowl like they have airline tickets!
Yep, they are a class of their own.
: : : 2) More ankle support
: : That's not a question of roller skate vs. inline but rather a matter of the boots you use. In what way do the boots I use offer less ankle support?
: **I'm saying that inline boots offer more support. Are you using inline boots?
I'm still using my ice hockey boots. I don't miss the tiniest bit of ankle support with them.
: **Inline boots often have multiple straps, laces, and clamps. Even quad hockey boots are not that supportive, and I know because I used to play hockey in hockey boots.
I just wanted to write that I have no experience with roller hockey boots. But that's not true. I use Meneghini boots on my street skates. OK, they do have less ankle support and I wouldn't use them in the ramp. Preferences vary widely.
: **I never said it was an advantage, I said it was a "pro", or you could call it a 'plus'.
Sorry, the fine distinction between those words evades me. Must improve my English. :)
: Kids will go for what they can find more easily.
I've got the impression that this is ever more true nowadays. Kids would build something themselves much more eagerly some decades ago. :-(
: : : 4) Parts easier to replace
: : Very true.
: **What?!! We agreed on something??!!
Can't be true. I have to find a way to contradict you ...
: **No, I said no wheel bite because the wheels on your right skate cannot bite into the wheels on your left skate when they come close together. I took quite a few tumbles learning to parallel skate, with wide trucks, because of this problem.
Ah sorry. I didn't get your meaning first time. Now it's clear. How can I contract?
: **Once again, I never said it was an advantage, I said it was a "pro", or you could call it a 'plus'.
Ahh. There it is again! Must flog myself to remember.
: Kids like to customize their own skates, but they tend to like it to not be so hard to do so.
The times have changed for the worse. :-((
: : : 7) More tricks to do on ledges and rails
: : Nope. It''s just that inline skaters do more tricks on ledges and rails. Which of those trick wouldn't be possible in principle on roller skates?
: There are many tricks that I cannot do because my wheels stick out and are in the way.
And he cannot do grinds. Duh! (I hear him protest vehemently, but to us old timers and to skateboarders, a grind is on the axle, not on plastic plates or boots! A grind is noisy, it doesn't go swish, but GRRINNND.