Advancement is the inclusion of new features.
Removing the ability to trade between the ds/i and 3ds is just a dick move to create the need for a money grab that everyone seems to be willing to accept.
It's call blame nintendo for not being able to connect a DSI and a 3ds. It's not game freaks fault my friend. They didn't remove it , they couldn't do it that way so that's why they did it this way.
Your right not everyone will accept but I bet those who won't will be in the minority , maybe 5% of the fandom if that. Think the majority of pokemon fans are in Japan which I believe the country runs on wifi lol.
And do you think they are making a huge profit on this?
Think BW sold 14 million copies so if all those sign up that's 70 million a year to maintain a cloud based server for 365 days of continuous use
45% goes to servers / CPU memory storage systems
25% goes to infrastructure / power distribution , cooling
15% goes to power draw / electrical utilities cost
15% goes to the network/ links, transits , equipment
Don't forget it has to pay for the employees to manage it and yes it is reasonable for the pokemon company to make a profit.
It seems like Nintendo is one of the few good corporations out their left that doesn't corrupt out politics , screws out economy or ask for bailouts , so lets give them something.
This is what you are ignoring
A person should not have to pay to trade between two games that they already own.
This is my issue with it - I've a dsi. I've a 3ds. I'd copies of black and black 2. And plan to get a copy of X. Why should I have to pay $5 a year to be able to trade from my copy of black 2 to X? Why should I have to pay for what has been a standard feature, the ability to trade from the previous generation to the next?
If they want to make money, I'm not against that. They can charge all they want for wireless trades. But they shouldn't charge for a person just wanting to trade between two games that they own.
Look at it this way. They could of pull a gen 3 on us and not have us able to transfer at all
If given the choice to leave are pokemon behind or pay a small fee which is not even 10% of a minimum wage worker weekly paycheck to bring them over I choose to pay.
Keep in mind no ones forcing you to buy this