You definitely don't need top of the line skis- in fact you may be happier on something that's a little bit wider and more stable, even if it's a little slower.

Have you chosen between classic and skate? What type of skiing did you do on the skis you tried? It's important to decide what type of skiing you want to do first, then look for a model designed for that type of skiing, then make sure you've got the right size.

If you really want to buy from this store, at least look up the brand/model online and check a weight/size chart. If there's a better place that specializes in nordic skiing around, it might be worth the drive.

Good luck!