If you are looking for a budget boat, I'd look at the Rocky Mountain Raft brand or Aire's Tributary line. Bullets are glued (AKA "Solvent welded") together, and that manufacturing process is not known for long term reliability. RMR rafts and Aire Tribs are made in China but are both thermo welded together with a higher quality control. Also, the RMR rafts have a lace in style floor, and you can get either a standard I-beam floor or upgrade to a drop stitch floor for a few hundred more. NRS is selling a cheap boat that is thermo welded in all of the air-holding seams, but the D rings and handles are glued. They have a funky floor design I'm not too sure about either.
AIRE, SOTAR, MARAVIA, NRS, and HYSIDE all make great products, and I think you could be happy with any of those brand rafts for a long time. They are a big step up in price, but a $5K raft that lasts 20-30 years is worth the money (If you can swing it)
Wishing I was on the river instead of surfing the web...