All respect due but it all depends on what you mean by "half decent."Fact is you're going to be in the 20-30k range for a half decent wedding.
If you're going to go the route of having a conventional wedding, by which I mean, "shit you see in popular culture," then yeah, it's going to be expensive. I mean, there's a reason why the wedding industry is a multi-billion dollar one; people expect to pay a heavy chunk of change and there's a gazillion different vendors out there clamoring to get a piece of it.
But when you get away from the boilerplate "fairytale" wedding, there's just a lot of different ways to do it. Some are expensive, many are not, at all. It all depends on what you want your wedding to be like.
Real talk: I've been to a lot of those weddings - more than I care to remember. The vast majority of them were - from an attendee's point of view - dull, even tedious. The amount spent on the wedding didn't make a difference at all.
I do think the size of the wedding is more determinant than price; the bigger you get, the more likely you have to concede to certain conventions. A good wedding - from an attendees point of view - is based largely on the chemistry of the collected guests and for real: that's pretty fucking hard to achieve in many cases when you're mixing people you *need* to invite vs. people you *want* to invite. With my wedding, we happily agreed: no extended family. We had a separate banquet for that which made them happy. And we got to have a small wedding of all friends plus our immediate family and that made us happy. Win-win.
This reminds me: one of the best "bigger" weddings I've been to was Justin's. It was a big mix of friends and family, but the energy was just good. My only regret is that I had to leave early to get my then-infant daughter home for bed. I'm assuming their wedding wasn't cheap but it wasn't the money that made it good.