I can't think of any other justification for .sucks to charge as much as they do for registration other than to ransom large companies.
TLDs are a complete wasteland any way you look at them.
com.au domains (owned by AUDA) at have a policy against squatting but it's reactive, toothless, time consuming and painful. On releasing a squatted domain, it's flagged as being a squatted domain (rather than expired) and AUDA approved registrars such as drop.com.au host blind auction domains, with the highest bin winning. Meaning you're either paying more than you need for a resource that should cost $15AUD to fight off real or imaginary squatters who will offer you the domain at a highly inflated cost. If you lose the auction any money you bid ends up as non-refundable credit within Drop.com.au ecosystem. I'm still unsure if it's good intentions gone bad, or just blatantly corrupt.
/rant