I didn't even check DIY solutions before buying one, I should... I don't like the changing address of Ledger, don't know if it's a rule for all hardware wallets but I don't really understand the goal.
If by changing address you mean you get a new receiving address every time you want to receive coins, this is called Change Address and it exists for privacy reasons. If I had your address and you never generate new addresses, I would know that all your incoming and outgoing transactions are received and broadcasted by you. If you have Change addresses, tracing coins to your identity is getting harder. Add Coin Control to all of this and you will have significantly increased the privacy of your Bitcoins.
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Regards,
PrivacyG