yep. if it doesn't leak. what kind of pump/canister filter? I spent close to $1000 on a new 125, with 2 Eheim canisters, stand, cheap light fixtures, and no substrate--almost 2 years ago. So, yeah, I think you did alright--if the tank doesn't leak. Even if it does leak, you reseal it, it's still a deal.
I spent $250 on a used 90 Gallon Hex 20 years ago, and that was with no filter. It was a fun tank, though.
$175 is about 2 months of cable TV. You'll spend alot more than 2 months watching that tank over the next year.