I have a 2.7 Ghz, 8 GB Ram, 256 GB SSD storage 2015 MacBook Pro... The machine runs great, but I would like to replace it with a more modern MacBook that will last for several years and weight a bit less. Not interested in the 16“ big boy. When the MacBook Air was released, a lot were saying it was underpowered. This new MacBook Pro doesn’t look that much more powerful at the base level. It seems like I would need to pay at least $1,700 for a machine that will do what my 2015 did (a good productivity laptop that lasts a long time). Is that fair? Could I settle for a MacBook Air?