I don't usually buy new. If I do, this year would be:
CAB3, running all lionel from 1 remote, CAB3 and a powermaster is intriguing.
The Frisco 0-6-0, if I can convince myself the tender is OK. Still working on that. A used B6 that looks good and upgraded with ERR command may be cheaper.
The Incredibles aquarium car. A family thing.
North Pole doodlebug. Over the Reindeer car. Sorry $300+ for a car just is too much.