It's not sad at all. Soldered components make them more reliable, reducing the need for maintenance. They're also much more recyclable these days. Buy the RAM you want up front. There are plenty of companies who buy used Macs, the money for which can go towards a new one. This penchant for upgradeability is so '80s/'90s. Come on up to this century.
Except for when things fail (e.g. SSDs fail) you've now got to replace the whole logic board. When anything fails you've pretty much got to replace the whole thing. Thats not better for the environment. Soldered joints can fail and connectors are fairly reliable anyway. Soldering Ram and storage reduces the useful life of a machine unless its maxed out at purchase. Who would buy a 4 year old Macbook given specs in 2010/2011 were 2 GB of ram, a slow harddrive etc? The reason they're somewhat worth something is that they can be upgraded with an SSD and 8GB of ram.
It is very sad especially when we're talking desktop machines that have the space for things to be upgradable. Not only that but it made it cost effective to buy with lower specifications and upgrade. Thats what I did with my Mid 2012 Macbook. Cost me nearly $1000 less than a retina macbook with the specs I have now.
The penchant for disposable computing should be in the past. We're entering a world where we should be extending the useful life of hardware, making it last longer and making it easier to replace individual components when they fail.
Its not about anything other than making more money for Apple. Now anyone who wants to upgrade, you've got to pay Apple over the top prices to begin with. Then if an individual component fails (e.g. the soldered SSD) you've got to replace the entire logic board meaning using energy to both create a new one and energy to recycle the old one, instead of just replacing the SSD, which uses a lot less energy to create and recycle the old one. Then as theres no ability to upgrade the machine as time goes on, if you realise that the machine you bought doesn't have enough ram or HDD 3/4 years down the track, instead just upgrading, you've got to pay Apple for a whole new machine. Then because the machine has outdated specs and no upgrade path, its worth a lot less on the resale value because the second hand market doesn't want the old machine.
Oh and not to mention that solder joints can also fill.. especially poor quality soldered joints. Look no further than the poor quality iBook G4 solder joints that lead to a huge number of GPU failures.
Yes there is a slight disadvantage in connectors failing, but in all my time of maintaining machines, I've seen failed SSDs, failed HDDs but not the connector (on the logic board) failing. I would agree with soldered components in machines where thinness is the aim of the game (Macbook Retina, Macbook Air) but not in desktop machines.
And yes, I will be flamed for saying this...