I've used two 25' usb cables in series with a coupler for an audio recording system that used USB 1.1 spec, with zero issues.

One thing to be mindful of: Key feel of cheap controllers feels pretty darned cheap. If that is not of concern to you then have at it.

I have an M-Audio Oxygen 49 that I paid just over $100 for it. Pretty crummy. I bought it on-line. Had I auditioned it, I would have saved my money.

If you must go cheap, then shop Craigslist for used Casio and Yamaha arranger keyboards with USB midi. There are loads of them in the 100$ range in most major cities. Make sure that they have velocity sensitivity. The Craigslist postings almost read like they are from a standard script. "I bought this keyboard to learn piano, but I just don't use it anymore." Make sure to compare price against new models with similar features.