At least I think it is, I'm new to it all! The following works out at less than a fiver per giant... 
I got 6 Skylanders Giants for £27 from Tesco Direct- it's 3 for 2 on Giants at the moment, pus some are reduced by £1.50- 50p plus if you spend over £25 on entertainment you get £5 off.
DS will be chuffed to bits though we're letting him get one with his 'pocket money' and save the rest for treats etc.