Four of those games alone would have cost $20 before and now you get all of those games plus what's coming in the future in addition to all of the other stuff. What are people complaining about? Lol
Nintendo charging for an online service is going to bring up comparisons to competitor's services, which blow this out of the water. A library of 30 year old games doesn't cut it when the competition is giving out relatively new indies and even AAA titles on their services. Yes, those services are 3x the price but that price gap is inconsistent with the gap in services (XBL and PSN have party chat, communities, cloud saves for all games). Sony put Bloodborne, one of the best games of the current generation, on PS+, but for a third of the price Nintendo can only part with 30 year old ROMs?
And yes, at the prices Nintendo charges for NES games this is a bargain, but Nintendo also heavily overvalues NES games in a time when digital sales have drastically devalued video game prices. I can grab MGSV for $5 on Humble Bundle right now, which is also what Nintendo would charge me for Balloon Fight. Nintendo is free to charge what they want for their titles, but I'm free to think that their prices are absurd.