(brief comment was from phone, much prefer proper keyboard when possible, and with an iMac in the lounge, I now have a hot coffee too!)
Anyway, unless you need the portability of a laptop, you might find a s/h iMac a worthwhile purchase. 2 of the ones I bought are 17", 3 are 20", one is plugged into 42" TV for watching TV Catchup (I have the Android app on a few phones) and some even had extras (such as MS Office for Mac {2011}, installed).
Just my twopenneth - I will not consider the prices Apple charges for new (or even the refurbished cost) because they don't seem good value for money, but second-hand, I will consider, and while the models I have won't all go up to latest versions of OSX, they're still pretty good machines and provide me plenty of storage, etc.
No way would I spend 600+ on a single system (when I could put Linux on a 300 pound desktop unit and have 1 TB of storage, 8 GB RAM, and masses of processing power). Saw a used Apple at near 800 quid s/h in a shop the other day, and I suspect it will stay there for a while, since all the other laptops are 250 to 400. OK, the shop will have applied a markup, but perhaps worth checking Ebay unless you will only ever accept a "new" and "untouched" unit.