I'm new here...advice, please! Would you purchase a rental from ebay? There is an offer for Marriott Grande Vista Resort in Orlando for 7 nights for $749.99 for a 1bdr suite. We have reserved this already for $1015. This is a difference of $265 - but I'm not comfortable w/immediate full payment online thru ebay. It is offered by CrusadeTravel. Does anyone have any experience with them? thanks in advance!