I honestly can't tell if you guys are seriously investing in Dogecoins, but if you are, carefully consider that you would be investing in a currency that revolves around an Internet meme, and that people are actually taking the time to hack 21,000,000 of these joke coins.
If this actually does take off, and somewhere, maybe years down the road, investment bankers start buying and selling "Doge," I think that'd say a lot about the Bit/Dogecoin community and the value of cryptocurrencies.
I like Dogecoin and I do believe it has a solid future not just as a short-lived fad, but as a stable and trusted altcoin. Not sure about investment bankers but people want a branch of cryptocurrency that does not take itself too seriously, which is exactly what Dogecoin does. It may be based on a meme but it's still more legitimate than 90% of all other altcoins which are copies of bitcoin running the very same software repackaged in a different way yet call themselves 'innovative' and usually result in pump and dump schemes. As cheesy as it sounds doge has spirit, the special kind of charm that imho will take it to the moon └(°ᴥ°)┘
And concerning security as I said in the previous post it's best to avoid online wallets unless you have complete trust in the person that runs the service. Of course there are exceptions like the
blockchain wallet which uses client side encryption, but I'm not aware of anything like that available for doge yet.