Now I strongly recommend the electronic compass. Its usually only about $15 more - or so.
I see the prices have changed. When I bought mine, it was new. Even now I find websites claiming the list price is $428.56 versus $374.99 (over $50 more), and the difference was greater back then in the UK. But now they tend to be discounted down to virtually the same price.
... and then used the electronic compass to help me find the corner.
A compass is certainly a good addition to a GPS, but it's arguably better to have it as an independent unit, for backup reasons, rather than integrated. But it's probably better still to have both: separate compass and integrated digital compass.