Only you can make the call, the "dumpster" aspect of a trailer is great but don't be fooled, it still costs money in insurance tires brakes registration. And you still need a truck to tow it.
Pulling a trailer is a hassle in itself.
I'm assuming the truck is a gasser and you can get much more/ a nicer newer truck for that money.
I vote for a truck, get a trailer next year. They're cheap and it's nice to have both. That's what I did/will be doing