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#11
For as little as $200 I upgrades my ASUS-U46SV to 8GB RAM and 512GB Samsung SSD. Now it is lighting fast. If I would have purchased a new laptop with 8GB RAM and a 512GB SSD, it would have cost me most likely well over $1000.
The battery for your laptop is also quite cheap, so I would go with the upgrade rather than buying a new computer.
Check my computer specs for further details. I am a computer enthusiast and I can confirm that my laptop is fast enough, and if you upgrade yours it will be as fast as mine if not even faster. I do programming and virtualization and this laptop is more than enough. If you are only going to surf the web and send a few e-mail, then your current laptop after upgraded parts will be closer to an overkill than being too slow.
...just saying....