@skematica Almost 6 years ago I bought the base model in the 15-in MacBook Pro, with a quad-core Core i7 of 2 GHz, more expensive versions at the time had 2.2 & 2.3 GHZ processors. I started with 2 GB of RAM & now it sports 12 GB, with the option to go to 16 GB if needed. I was using just 25% of the space on the 500 GB HDD, so I swapped it for a 256 GB SSD.
This Mac is still my main machine at home, it's still plenty fast enough for my limited needs.
All the more amazing about that longevity is the this particular model was subject to a graphics issue, with Apple offering a free motherboard replacement for affected machines, this was due to problems with the lead-free solder used in its circuitry. Mine never gave any trouble.
// @matigo