I have questions regarding the Frogskins Gen 1 as follow, 1. How old is it and is it still durable enough for Daily wear? 2. Are lenses from current gen Frogskins fit? 3. How much do you think is the fair price? 4. Is it a good investment in collection? Below is the actual pic of the Gen 1 offered by a collector (asking for $225). What do you think?