You might want to look into "Fold-up" boats. They are pretty reliable and easy to row. You may be able to find a used one pretty cheap
IMHO, those Sevylor things can be danerous as a tendor and they are very hard to row (impossible in a strong breeze unless you fill it with water). When they leak, your done. They sometimes tear wide open. You could find yourself swimming a long distance. If you get one, I would recommend carrying a smaller spare for emergencies.
Remember, those things are a toy and intended to be used as such. Once you separate yourself from your vessel, you may want to think twice about relying on a toy to get you back.