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Posted by $Bill on June 1, 2006, 1:35 am
Henry wrote:
>
>
>>If they aren't charging a rental fee or if it's really low (under $3/mo),
>>I'd stick with their equipment.
>
>
> I'd say that (under $3/mo) _is_ 'really low' and it would be hard to
> beat that. My ISP, on the other hand, charges more like $9/mo if you
> want to rent it from them.
Mine costs $3/mo and I could easily justify replacing it, but saving the
hassle of dealing with a failure is worth some bucks too. I figure it's
18 months of rental to buy, but you have to add on for the bonus of free
replacement/repair with the ISP. Over $3 - I wouldn't argue - buy your
own. At $9/mo - buy two of them in case one fails in 6 mos.
> In any case, there is a simple formula which tells you whether to rent
> or buy.
>
> (purchase price / rental price) - warranty period = x
>
> If x is positive, rent; if it's negative, buy.
>
> In other words, if you can completely depreciate the purchase price
> before the warranty expires, buy it; otherwise rent.
>
> Now, I should add that this way of thinking does presuppose that you
> have a reliable warranty. Those who advocate renting always say, 'that
> way, the equipment is theirs so if you have any problems you just take
> it back and they give you a replacement!' However, if you buy the modem
> from the ISP and it fails within the warranty period, they should treat
> you just as well. On the other hand, if you buy from a third party you
> may have downtime for however long it takes to get the repair /
> replacement sorted out.
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