Are double walled rims worth the money? I need a whole new front wheel.

I have been around some of the bike shops in my city and found that the cheapest whole new wheel (wheel, tire, tube, tape) is about £55.

I also asked at the shop I bought my bike about getting a like for like replacement (i.e. the same make of wheel that I am replacing) and the guy helping me said that would cost about £100, probably a bit more.

The increase in cost is because the hub (sorry for my lack of expertise) is aluminium and the rims are double walled rims (which I think are sprint rims judging from the picture in the wikipedia article). He explained that double walled rims significantly increase the strength of the wheel, which is important when hitting potholes.

I have a hybrid bike, and ride almost entirely on road. I currently ride about 54 miles a week, and I'm hoping to increase that to nearly 90 once I'm fit enough, so I guess that's low to medium usage. The roads around here are fairly potholey, but I manage to avoid the holes most of the time.

This is the bike I currently have: http://www.giant-bicycles.com/en-gb/bikes/model/escape.2/7090/43391/ (without the front wheel!)

Given the above, is the more expensive wheel worth the extra money?
Extruded aluminum double wall rims are pretty much standard now (they are very much stronger than the cheap single wall rims).

Can you post a link on the bike you currently have ?

Cheap yet good quality wheel :

http://www.bike24.com/1.php?content=8;navigation=1;product=900;page=1;menu=1000,2,140,17;mid=0;pgc=0;orderby=2

Update :

OK - it is not a top quality bike, but still a good one that should last quite a bit with proper care (cleaning, lubing, changing chain when it's time, etc). Probably more than 10.000 km. Much much better than budget bikes that are totally destroyed after 1000-2000 km. 

So it makes sense to put a good quality 50€ wheel on it.

FYI, I just bought a wheel for 100€, it has a Shimano 3N80 dynamo (which is expensive), excellent quality spokes, and an very tough rim designed for loaded touring (forgot the name).

Basically in bike gear there are three broad "zones" :
- cheap crap
- reasonable price, reasonable quality
- expensive stuff whose purpose is mainly to shave off some weight or survive extreme conditions

Without dynamo, you can get a good quality wheel for 50€ if you shop around. Don't spend 100 quid, it's not necessary. But don't spend 20 quid, you'll get crap.