I'm the idiot that sold the Wood River to Jack!
Seriously, I will go to the Hobie Floatcat with oars next year. I know 2 guys near me who have the Floatcat 60 (the small one) with oars & both love them. They are fairly light, pack well, but are sort of a cross between tube & pontoon. I miss the tube, & the use of oars should put me back on the water.
In addition to what others have said, make sure the stitching on the tube is double and/or triple stitched. I had seams pop when inflating a single stitched back rest on a tube years ago. What "type" cover exists where you fish?..that can dictate whether a tube with a thin (packcloth) cover will work or whether you need to look for a hard tube or 1,000 denier cover if you may be scraping stumps, branches & the like.
Tubing is GREAT!!...With the right tube, your experience will be very enjoyable & productive.
Silvertop2 gave great advice...hit those meetings & get some advice.
Good luck!
Mike
FAOL..All about caring, sharing, & good friends!!