If I were willing to buy a glued plastic boat, Vanguard would probably be the only option I would consider. For the same price you can get a welded raft from Tributary. I've not been able to get my mind around why some of these companies would glue plastic, when AIRE and Jacks has proven that welded seams are bomber. Eventually in time we'll know!
Also, Tributary/AIRE performance on the water seems to be dialed, whereas, Vanguard has not dialed in their designs. Vanguards really thick floors 21" tubes on a 14' is over kill. Last summer one of the companies on Alpine Canyon were using Tributary's.
If you're looking at 14' boats and for a few hundred dollars more than Tributary and Vanguard you way want to also look at this new hypalon on sale:
ACHILLES 14' S/B RAFT