I would urge caution when buying a rod from a super market! Its a very hit and miss affair.
I have found some telescopic rods can be very good, and by this I dont mean necessarily expensive, they have some significant advantages for backpacking over multi piece take a part rods with the only down side being that they are a bit lumpy casting due to the thickness at the large telescopic joints.
That said ,assuming that you are looking for a practical rod for general fishing then I would suggest that you stick to a Shimano Exchange STC 270M (circa £65) which is a take apart rod. At 270cm this size/length is just capable of some light sea fishing/spinning, while not too heavy for the lighter freshwater stuff, so a good all rounder for getting dinner.
The Shimano Exchange Mini (10g-20g one ) is ideal if you only fish for perch/trout for the pan. (The really small one is very specialist and not really practical)
If youre going to buy a supermarket rod, or any rod for that matter, and I cant stress this enough, test it!!!!
Take it out of its bag, set it up, bend it over fully by having a helper hold the tip, check all the fittings for quality by pulling at them and look at the blank carefully for any nicks or obvious defects. (Always beware of painted rods). If it looks sound, you might have got lucky, but cheap rods are just that, cheap, and have a habit of letting you down when your miles from a replacement.
If it busts, hand it back to the checkout girl and threaten to call claims direct 'cus of the nasty splinters......
A good rod, properly cared for (rinsed clean after every use and not pressed to do heavier fishing than it was designed for), will last the best part of a lifetime. This represents true value. Think of it as a tool and you wont be swayed into a bad decision.
Another thing, you will need a rod tube. So take this into account if your thinking of going bush with your rod, if you dont have one of these you will spend your whole trip acting like youve transporting plutonium.
These days airlines insist that you check rods as luggage incase you try to kill the pilot with one , there is nothing like finding your rods under a heap of suitcases (Cheers Stockholm Airport), when youve taken the time to mark them fragile from every possible viewing angle, to start a trip in a huff. Also wrap them in paper when you travel to make them less conspicuous as rods, they have a nasty habit of going walkies if you dont.........