They are always after one thing....YOUR MONEY.Same boat here, what is the end result they are after?
They will use different techniques to get it. Without actually getting in touch with these sellers it is hard to say which technique they will use.
Being in the IT field most of what I hear and read is they will at some point ask for your bank information to do a wire transfer or take control of your computer and log into your bank accounts. Then they will move money around quickly and claim to have deposited a said amount (usually transferring money from one account to another). Then say OMG I just deposited an extra 2K into your account. Then they will want you to go to your local Target/ Walmart and buy gift cards for that amount. The final goal will be to give them the gift card numbers and bam they just stole 2 grand of your money.
Unforutently there are so many other scenarios of what they do to get your money and this keeps happening because people just keep falling for it.
Don't be dumb...don't open links in emails that look suspicious, STOP letting random people connect to your PC (Unless you yourself called that specific company).