Yes, being able to upgrade is great. But I do get annoyed at how much they charge. For example getting an additional 16GB of memory for the T450s is $309 at L

Yes, being able to upgrade is great. But I do get annoyed at how much they charge. For example getting an additional 16GB of memory for the T450s is $309 at Lenovo (on big sale from the usual $430), while the same from Crucial is $180. A 512GB SATA SSD for that model is $430 (on sale from $580) while a comparable model from Crucial is $180, or a Samsung 850 Pro for $220 on Amazon. As a consequence I have a collection of unused 500GB laptop hard drives since you have to order with some storage and that is the cheapest Lenovo do. I immediately replace them, but this is wasteful and silly. If their prices were far closer to normal then I'd just get Lenovo to do it, and they'd make more money. Instead they see me getting the lowest specs, instead of what I actually use.