Survival is a meme spec, nothing else. Does fairly decent, one of the top meme specs up there with assa rogues/arcane mages and does a bit better than arms warriors and elem shamans. The only reason you'd want to play survival is if you're bored of MM (you'll just have to come to terms with the fact you'll do less dps in exchange for a slightly different gamestyle). Don't make survival a permanent thing, you're just crippling yourself, just play it from time to time so you don't get burned out by MM.
How do you spend 100k gold when you already have 4 sets of armor? Even if you'd constantly re-gem and re-enchant the same set of armor you wouldn't even come close to that amount.
You spent 250 hours and did 50+ raids and you rank a stat with less than 0.5 EV (roughly 0.3 when you get close to bis gear) higher than arp which, even if you're survival, still affects over 50% of your total damage.
As I said above, arp cap is still affecting a good chunk of your damage. The best possible gear setup runs similar items to MM and runs somewhere around 85% arp (cloak, ring if you're alliance and depending on the fight a trinket are the only things different from a normal MM gear setup)
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Feel free to post some numbers with your setup in an icc run and I promise I'll do a run myself so you can compare them.