IMHO a GPS is not a 'must have' for VFR bimbling. However, it's a useful toy as long as you remember priorities - look out the window and don't spend long squinting at that tiny screen.
I recently bought a 'Pilot 111' and there's no doubt it's a clever piece of kit. Just for fun I have set up Routes for my favorite VFR bimbles and the HSI page (and map, but that can get crowded) can be very useful in marginal VFR. Just ensure you're not coming to rely on it - it's good, but not that good.
I decided to lob into Sleap the other week for lunch. Got the info on the radio but there's no room for a Poolys in the Chippy so what's the runway layout? Just move the GPS cursor over Sleap on the map and 'enter' - up comes all the info about Sleap, including a runway layout!
Coming out of Sherlowe strip last week I went straight into a rain shower. Could see about half a mile all around, and Shawbury asked me to route 3 miles east of them and 3 miles west of Ternhill - they are 6 miles apart. I could position visually OK approximately, but the trusty GPS confirmed my judgement of approx position but enabled me to position *exactly* between the two.
In short, Poet Pilot, you probably don't need one. But if you get one, you may as well splash out for a 'proper' aviation one, and the 'Pilot 111' isn't the market leader for nothing ;~))
SSD