Extremely unpopular I gather, but I vote for Stainless steel stock pots. If your not bothered about an airlock they are great. cheap, almost indistructable, last a lifetime, boilable, scrubable, droppable -havent tried this so far but if one dents you can go back to the first point - cheap enough to replace if dropped. You can get any size imaginable, many aspect ratios to fit your fermenter area/fridge. they have welded on handles so you wont drop them anyway. you can whip off the lid and skim yeast or add dry hops really easy. You can drill a hole and add a spigot.
I added a spigot and now can use it for a temporary HLT store since my kettle doubles as a HLT and I need storage in another vessel whilst i'm pumping first runnings into the kettle. I have a quick connect on it the same as for my kettle and mash tun spigot, so when the boil has finished I can simply drain from kettle to fermenter via spigots and keep my fermenter lid on.
Only downside, no airlock - although you may be able to manufacture some kind of gasket for the lid and drill a hole in the lid for an airlock. I dont bother for primary.
You cant see the wort fermenting. I have seen it before in glass carboys and now its not as interesting to me. I can gauge activity by lifting the lid a bit.
Forgot to mention, very light weight if you get thin walled/base ones. slightly lighter than glass I would think.