Since you can afford to go, I think you should seriously consider it. If not this tournament, then another one that interests you. But as MediaBlitz says, go mainly for the experience, and if you win some money, consider it a nice bonus. Assuming the tournament will pay about 10% of the field, the odds
of cashing are not great for anyone.
Otoh, I've only played one big buyin live tournament (3000 euros), which I got into by winning a satellite package, so I can't speak to paying my way out of my pocket. However, I think my experience was better than if I'd gone on my own. I won my package on Titan, which had 18 players there, so they sent a couple of people to host us, arranged two group dinners, set up the chance to have drinks and speak with Sorel Mizzi (which I had to skip because I was still playing), a champagne celebration when one guy cashed, etc. Also, because I was there as part of a group, it was easy to have other players to and hang around with.
In terms of the quality of the field, Doyle and Todd Brunson were the big US names, and there were lots of strong Europeans. However, I was pleasantly surprised not to feel badly outclassed at my table even though it included a WPT winner who subsequently won that tournament the year after (luckily he was on my right). But many of the others had satellited in too, and I could also see from talking with them and/or from watching them play online that quite a few weren't far above my level.