I almost want to cry seeing how much it costs here. The M4 SCK + a 12v batt + a M130 cylinder was ~1000 CDN bought in HK. But its unavoidable, unless you have the guts to ship one back
Now for 2g I probably would have never bought one here. It's nice, real nice but at least to me, certainly not worth the price tag in Canada. But, if you're into upgrading, and plan to buy a TM and throw 1 grand in it, then just get a PTW. You save yourself lots of headaches.