any old pc could beat an iMac on performance, no need for £1k just cause you have the sheep tax on an iwhatever 
 
if you value looks over performance get the iMac simple really.
		
 
Well that's not really true now, is it. Seeing as they use quad core i5/i7s in even the most basic iMac configuration.
	
		
	
	
		
		
			it baffles me that imacs dont have right click O.o
		
		
	 
They do have right click.
	
		
	
	
		
		
			only thing that makes an apple fast is its optimized operating system not the hardware. Its with all their products.
		
		
	 
Again, not strictly true. They're pretty decently specced machines, running on slightly more efficient software isn't a bad thing either.
	
		
	
	
		
		
			they lack expandability too.
		
		
	 
Well yes, they do. But that could be said of any All-In-One.
Also, when you get down to it they're really very good value. For example here's a spec using decent quality but still cheaper components, it's roughly identical to a base spec iMac which only costs £50 more on HE and looks infinitely better.
	Qty 	Price 	Line Total
Dell UltraSharp U2212HM 22" Widescreen LED Monitor - Midnight Grey	 	£194.99
(£162.49)
Intel Core i5-2300 2.80GHz (Sandybridge) Socket LGA1155 Processor - Retail	£143.99
(£119.99)
Seagate Barracuda 7200.12 500GB SATA 6Gb/s 16MB Cache - OEM (ST500DM002)		£71.99
(£59.99)
Microsoft Windows 7 Home Premium SP1 64-Bit - OEM (GFC-02050)	£70.00
(£58.33)
Asus ATI Radeon HD 6670 1024MB GDDR3 PCI-Express Graphics Card		£61.99
(£51.66)
BeQuiet Pure Power L8 530W '80 Plus Bronze' Modular Power Supply - With 120mm Silent Wing Fan Built in	£59.99
(£49.99)
MSI H61M-E33 Intel H61 (Socket 1155) DDR3 Motherboard **B3 REVISION** 	£46.99
(£39.16)
Thermaltake VK60001W2Z Element S Case - Black		£44.99
(£37.49)
Logitech K340 Wireless Keyboard (920-001979)		£32.99
(£27.49)
Logitech G400 3600DPI Gaming Mouse (910-002279) 	£26.99
(£22.49)
Kingston HyperX Blu 4GB (2x2GB) DDR3 PC3-12800C9 1600MHz Dual Channel Kit (KHX1600C9AD3B1K2/4G)		£17.99
(£14.99)
Logitech X-140 2.0 Speaker System (970264-0120)		£15.98
(£13.32)
LG GH22NS70 24x DVD±RW SATA ReWriter (Black) - OEM 	£14.99
(£12.49)
  		Sub Total : 	£669.88
Shipping cost assumes delivery to UK Mainland with:
DPD Next Day Parcel
(This can be changed during checkout) 	Shipping : 	£19.10
VAT is being charged at 20.00% 	VAT : 	£137.80
  	Total : 	£826.78
There's two reasons to get a PC over a Mac, either you want to play a lot of games or you don't care about looks and just want the cheapest system possible. I fall into the former, if I didn't I'd just have an iMac 27".