We have some used, demo and blemished tubes currently however they aren't exactly "cheap" how cheap are you talking for a set? Here are a few examples;
12x20 - 2011 Teal - $1750 - Used twice, great shape, no patches
12x20.75 - 2016 Lime Green - NEW $2236
I have a list of 2014, 2015 and 2016 cat tubes that are 25% OFF they are the old model that didn't have handles, all the 2016 and going forward will have handles.
I have 3 blemished boats, 14x22, 14x24 and 16x24 that are all brand new with handles. We had a problem with a batch of urethane in GOLD (yellow) and there are runs in the paint, in no way hindering the awesome Maravia tubes that they are. They are all 30% off retail.
Here is a link to the boat sale page to check them all out:
Boats Sale Product Categories | Cascade River Gear
Have a great afternoon. Kindly, Renee