Well I have 2 endos but ones the regular and ones the BD. I'd love to see 5 of them together! I have quite a few mcFarlane endos - at least 9 I can see from where I'm sitting now - by the time I found the NECA one anywhere I'd moved on to 1/6th scale and theres no going back so didn't bother army building that.
I couldn't possibly justify army building hot toys stuff though. Perhaps if I had the self-discipline to limit myself to just Terminator or just AvP but I collect too many different lines.
The first single figure release I'm intending to double up on is the original suit Batman. Its such a cool figure, I fear an accident happening and the rubber being torn or scratched, I'd like to have a back-up. But mainly because I know I'm going to want to put batman inside the Tumbler and I don't want to hide my only original suit Batman like that.
I find though that with every Hot toys figure I get I immediately wish I had 2. This can fade. I remember I used to want 3 endos, 2 supermans and about 3 aliens warriors. I settled for 2 endos, 1 Supes (cancelled an order for a 2nd one recently) and 1 Aliens warrior (realising how inaccurate the latter is put me off buying more). Also Hot toys just keep announcing new things I want, seemingly month upon month, so that makes it harder still to order more than 1 of anything.