My old mid 2009 2.8GHz Core 2 Duo 15" 8GB RAM -- when fitted with an SSD, boots up: (1) from chime to first appearance of dock, 12 seconds, and (2) from Apple logo to first appearance of dock, in 10 seconds. With such SSD speeds with the Core 2 Duo, I wonder whether selling and upgrading to a new 2.3GHz i7 8GB RAM, MacBook Pro with new SSD , is worth it for the speed gains. As always, it depends on my usage: I'm in business, so the major app for me is Apple Mail-IMAP-Gmail, with a massively large database of emails. That has got to be ultra fast. Then it's web browsing and word processing. I rarely do Photoshop, and never do gaming or any graphics-intensive tasks. I've browsed Youtube videos where people show startup times of MacBook Pro's with SSDs, ranging from 2.3GHz i7 to 2.6GHz i7. Most are faster and, surprisingly, one was slower. But given my already-fast times of 10-12 seconds -- and that I don't do graphics-intensive stuff - I'm wondering if my daily working experience is really going to feel that much faster, to warrant spending big bucks on a new MBP with current processor and SSD. With my budget, I can afford it, but I don't just want to spend the money if it's not going to make a massive difference. I'm surprised how well the old Core2Duo MBP with SSD is performing. In the past, once a Mac reaches 3-4 year old it's well due for upgrade, but with the SSD in the Core2Duo, I'm thinking I could use this for a few more years. Any comments?