To the guy that asked about flipping this for a profit, you won't get that much unless you get lucky or find someone that doesn't know better (and if they are into variants, they probably know better). This is what I consider a "mainstream" variant. Like Blue Bash, Ruby Drill Sergeant, etc. It's not like the gold/silver/crystal figures last year, which had one very rarely tucked in a random shipment. They get whole boxes of only these variants. It is a store exclusive thing, like Granite Crusher and the Glow in the Darks (Fright Rider/Cynder) - and stores don't pay a lot of money for an exclusive if they cannot get enough to sell to cover the costs. Particularly for an online retailer like Amazon that isn't trying to drive foot traffic.
The only "rare" variant for Giants right now is the rock versions of Sonic Boom and Zook. And those seem to be a lot more common that last year's rare variants. They aren't commanding the premiums they did last time. Even the Gnarly Tree Rex (which only comes packaged in with Wii/PS3 bundles) is down to less than $60 at present, and you have to buy a console with them to get one of those. It seems Activision/Toys For Bob did a much better job this year on supply (although we will see if it keeps up after Black Friday and then after Xmas, those are the real tests since a lot of parents do not shop ahead).
Personally, I'm not fond of the solid colored ones. I do have a few of the "mainstream" variants from series 1, but we never use them. I actually placed an order for a S2 Flameslinger on Sunday through Amazon, and was aware of the Gold one being in stock - but still got the regular one. My sons pretty much ignore the old solid colored variants, they just aren't interested. My 3 year old pulls almost every one out of the boxes when we play, but he always leaves the solid variants in the case. I ended up caving and getting many more of the Series 2 reposes than I originally intended (mainly due to the TRU sale and getting 3 packs), but I'm going to draw the line at figures we will actually use.
By the way, for those that need a storage solution - we ended up getting more of these blue storage boxes from Ikea. They have 9 slots in each (with movable dividers, great for the giants) and stack, and cost $3.99 each. They are usually found in the kids section and are about 12"x8" (roughly). Some prefer the Stanley Sortmaster Jrs., but these Ikea cases also work well and aren't as "hardware" looking - not to mention are a bit more accomodating to the oversized giants. Both are leagues better than the "official" options, which are all way overpriced and under-sized (the best one I have seen only holds 32, which isn't even big enough to hold all of Series 1).
'em if they do..