Well actually, when you look at the teambuilding thread, the core which utilised mega abomasnow had many submissions which were based around trick room. Of course aboma is versatile enough to be used outside of it and normally it isn't used with trick room support but it definitely can perform extremely well inside it. Seeing as Camerupt is far far more effective under TR i think it's fair to say that you will be seeing a lot of teams which use trick room plus camerupt.
So when you consider that Aboma is effective under TR, it's clear that Camerupt will be far far more effective under the same conditions. First of all, its main stab move is far more powerful than snow mans.
252+ SpA Sheer Force Camerupt Fire Blast vs. 0 HP / 0 SpD Mew: 279-328 (81.8 - 96.1%) -- guaranteed 2HKO
252+ SpA Mega Abomasnow Blizzard vs. 0 HP / 0 SpD Mew: 201-237 (58.9 - 69.5%) -- guaranteed 2HKO after hail damage
Another notable thing is that camerupt synergises really well with common TR mons such as reuniclus, bronzong and aromatisse. Where aboma has common weaknesses to mons that these guys hate (Drapion, Doublade, Skuntank, Fire types and a couple of other) Camerupt can check them nicely.
Don't write off TR + Camel :]