I own a de-activated 1919 Enfield No1 Mk3 *. I'm certain it's definitely not a collecting item since it's one of millions. I bought it when i was 16 because i didn't need a licence for it and it sits in my wardrobe. The guy i bought it from only welds up the ones which aren't fit for anything except wall ornaments.
Since then, i'am now 20 and own a 1918 Enfield No1 Mk3* as a shooter. I bought it from the same guy and looked through a few hundred SMLE's to find a good one. Found some great examples to be deactivated. Some had nearly smooth bore barrels and parts missing everywhere. But if you put a rod down the barrel and weld it up, it would still bring a smile to someone's face sitting on their wall.