Welcome ghforlife...it all depends on 'what your needs are', as you've stated.
Using it for work/school primarily, or is it for fun/media?
Do you really need full portability? Or is a laptop/ultrabook portable enuff--and more powerful.
If you're looking to replace a laptop with a tablet, be careful, it can be more time consuming doing things via tablet/apps. (multi-tasking for instance, not so much on a tablet)
Having said that, if you want/need a great portable device, they sure do add flexibility to 'puter life. Email, light word editing, pics/tunes/ebooks/suf'n/vid's...it's all there.
Apps are super easy to install/uninstall so you can test drive a lot of them...which is good, cause some are lumpy. Hit some links around here, read some reviews, tons of
google info on different models...there's something for everyone. Cheers.