I dont think northern soul can be compared with property and art,property will always be in demand in an over populated world and thus increase in price,art for the most part are one offs and are hundreds of years old and will always appeal to the masses,whereas northern soul 45s will be worthless in say 20 years tops! I really cant see people falling over themselves for these records for much longer! And actually if you study the user names on ebay..jm’s..etc its the usual suspects buying them! Oooh i feel like ive just poked myself in the eye!
i think if you can afford it,and you want it simply for the enjoyment of owning it,then bloody well have it! But as a long term investment,sorry but thats daft!