After i buying domcop...

Hello my friends
i want to know your opinion.
i payed 98$ in domcop to find good expired domains for SEO, but i see the most of the domains are not so good with low Trust in majestic , I can use it for free in expireddomains +net
Is there any significant advantage I miss ? Compared to the free sites?

I'd like to hear some opinions as well - is it worth $98?
I used to search through GD auctions to find proper domains but I'm aware it's only one market.